Duo Fold Counter Downloads & RevenueDuo Fold Counter · App Store
8 days old
Duo Fold Counter is #9 in Utilities Paid in Germany and charting in 13 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperJulian Christopher Siebert
CategoryUtilities
Price0.99 USD
Released
Rating★ 2.2 (6)
Version1.2.1
Age rating4+
First seen by us
1 Nov 2026
1 Nov 2026Installs (est.)1k+ worldwide
✏️Description updated📈Entered the top 10📈Charting in a new country✏️Description updated📦Updated to version 1.2.1📦Updated to version 1.2🚀Now shown next to kakdo°：角度計・分度器, Hinge Caliper, Foldmeter: Hinge Angle & Ruler +2 more🆕Its developer released another app: Roomy for Duo: Full Width🆕First spotted by AppInsider
Full timeline · 26 events
- ✏️Duo Fold Counter: description updated· TH
- 📈Duo Fold Counter entered the top 10Top Paid · Utilities · IN
- 📈Duo Fold Counter charting in a new countryNetherlands
- ✏️Duo Fold Counter: description updated· TW, PH
- 📈Duo Fold Counter charting in a new country in 2 chartsMalaysia · Vietnam
- 📦Duo Fold Counter updated to version 1.2.1Improvements
• Opening the app from the widget no longer adds an extra fold.
• Widgets now stay up to date, also after the app counted in the background.
• Redesigned widgets: the "Last 7 days" chart shows every weekday, totals are easier to read, and the hinge lifetime reads clearly even with few folds.… more - ✏️Duo Fold Counter: description updated· 13 countries
- 📈Duo Fold Counter new best rank in the overall chart: #39Top Paid · All Apps · PH
- 📈Duo Fold Counter charting in a new countrySweden
- ✏️Duo Fold Counter: description updated· DE
- ✏️Duo Fold Counter: new screenshots4 screenshots (was 4) · DE
- ✏️Duo Fold Counter: description updated· JP
- 📦Duo Fold Counter updated to version 1.2New: iCloud backup & starting count
• iCloud backup: your folds sync to your private iCloud and survive a reinstall or a new iPhone (works locally without iCloud).
• Starting count: add folds and unfolds from before you used the app in Settings – included in totals, hinge lifetime and widgets.
• New "Folds total" and "Unfolds total" tiles on Today.
New: count with Shortcuts
• Duo Fold Counter now adds "Count Fold" and "Count Unfold" actions to the Shortcuts app.
• Create a personal automation on "Opened or Closed" (iOS 27.2 or later) and every close and open of your iPhone is counted – even when Duo Fold Counter isn't running. No location, no extra battery.
• Settings → "Shortcuts automation": add the two ready-made shortcuts with one tap and follow the short guide.
• "Count in background" is now called "Count in background (GPS)" to tell it apart from Shortcuts.
• Folds counted this way get a "shortcut" badge in History.… more - 🚀Duo Fold Counter: now shown next to kakdo°：角度計・分度器, Hinge Caliper, Foldmeter: Hinge Angle & Ruler +2 morethe store's “similar apps” for it changed: who it's seen as competing with
- 📈Duo Fold Counter entered the top 10Top Paid · Utilities · AE
- 📈Duo Fold Counter entered the top 100 in 3 chartsTop Paid · All Apps · CA · Top Paid · All Apps · DE · Top Paid · All Apps · SA
- 📈Duo Fold Counter charting in a new country in 2 chartsSpain · Poland
- 📈Duo Fold Counter entered the top 10 in 6 chartsTop Paid · Utilities · CA · Top Paid · Utilities · DE · Top Paid · Utilities · FR · Top Paid · Utilities · GB · +2 more
- 📈Duo Fold Counter entered the top 100 in 9 chartsTop Paid · All Apps · AE · Top Paid · Utilities · AU · Top Paid · Utilities · BR · Top Paid · All Apps · FR · +5 more
- 📈Duo Fold Counter new best rank in the overall chart: #44Top Paid · All Apps · AE
- 📈Duo Fold Counter charting in a new country in 7 chartsUnited Arab Emirates · Canada · United Kingdom · Italy · +3 more
- 🆕Duo Fold Counter: its developer released another app: Roomy for Duo: Full Width
- 🆕Duo Fold Counter first spotted by AppInsider#18 in Top Paid · All Apps · Philippines
- 📈Duo Fold Counter new best rank in the overall chart: #107Top Paid · All Apps · SA
- 📦Duo Fold Counter version 1.0No release notes
- 🆕Duo Fold Counter released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
2.2 ★
6 ratings
Measured
Best rank now
#9
Utilities PaidMeasured
New ratings a week
16
App Store, 4-week average
Measured
Duo Fold Counter at a glance
AI summary written from our chart and store data, 2026-11-07. It can be wrong: check the numbers above.
A utility app for foldable iPhone users that tracks hinge usage via sensors and Shortcuts to provide statistics on fold counts, angles, and estimated device lifespan. The app is currently ranking in the top 10 of paid Utilities charts across several European markets including Germany, France, and the UK, despite a low user rating of 2.17 stars from only six reviews.
Similar apps: Hinge Health, Battery Life, Usage Time
Duo Fold Counter on the App Store
App details
App ID
6827677447
Publisher
Julian Christopher Siebert
On the store since
Oct 2026
Under a year
Minimum OS
iOS 27.1+
Devices
iPhone · iPad
Content rating
4+
Languages
2
EN DE
Size
2 MB
Also listed in
Productivity
App privacy Measured
Duo Fold Counter declares it collects no data at all — the rarest and most private label on the App Store.
Declared label
Data Not Collected
As declared by the developer on the App Store — Apple requires every app to publish this label. We track changes over time.
Duo Fold Counter downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Duo Fold Counter's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Germany | UtilitiesPaid | #9 |
 South Korea | UtilitiesPaid | #8 |
 United Kingdom | UtilitiesPaid | #15 |
 Canada | UtilitiesPaid | #8 |
 United States | UtilitiesPaid | #49 |
 Japan | UtilitiesPaid | #45 |
| Germany | All AppsPaid | #67 |
 France | UtilitiesPaid | #24 |
 India | UtilitiesPaid | #29 |
 Australia | UtilitiesPaid | #47 |
 Italy | UtilitiesPaid | #79 |
 Poland | All AppsPaid | #114 |
 Thailand | All AppsPaid | #111 |
 Malaysia | All AppsPaid | #172 |
Apps near Duo Fold Counter on the chart
Utilities Paid, around #9.
Ratings
App Store, worldwide.
Rating
2.2 ★
6 ratings
Measured
Ratings
6
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
16
4-week average
Lifetime rating
3.1★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
70/100
faster than 83% of Utilities apps
New ratings by country (6)
| Country | New ratings a week | Share | Last 2 weeks vs the 2 before |
|---|---|---|---|
| United States | 7 | 45% | – |
| Germany | 4 | 26% | – |
| Australia | 1.2 | 8% | – |
| France | 1.2 | 8% | – |
| Italy | 1.2 | 8% | – |
| South Korea | 1 | 6% | – |
App Store ratings in the countries we track, 4-week average.
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about Duo Fold Counter
From recent reviews.
About Duo Fold Counter
How often do you really fold your phone? Duo Fold Counter counts every fold and unfold of your foldable iPhone, turns it into clear statistics and shows you how much of your hinge's estimated life you've already used.
COUNTS LIVE, CATCHES UP LATER
While the app is open, it reads the system hinge sensor and counts every fold and unfold in real time. Folded it while the app was closed? When you come back, Duo Fold Counter notices the change and records it as an "inferred" fold, so your history stays complete. You can also log folds manually at any time.
OPTIONAL: COUNT WITH SHORTCUTS
Duo Fold Counter adds two actions to Apple's Shortcuts app: "Count Fold" and "Count Unfold". They run in the background without opening the app. Set up a personal automation once – Shortcuts → Automation → + → Display → "Opened or Closed" → Closed → Run Immediately → add "Count Fold" (and the same with Opened → "Count Unfold") – and every close and open of your iPhone Duo is counted, even when Duo Fold Counter isn't running. No location, no extra battery. Settings → "Shortcuts automation" adds the two ready-made shortcuts with one tap each and walks you through it. Requires iOS 27.2 or later.
ALTERNATIVE: COUNT IN THE BACKGROUND
Prefer not to use Shortcuts? Turn on "Count in background (GPS)" in Settings. iOS only lets apps keep running in the background with location, so while this is on the app keeps location active – you'll always see the location indicator – and detects folds with the magnetometer: the halves of your phone contain magnets, and closing it brings one close to the compass sensor. Folds detected this way get a "sensor" badge in your history. It's off by default and uses some extra battery.
STATISTICS THAT TELL A STORY
• Folds per day and your total over time
• Time spent folded, half open and unfolded
• Opening angles: tent, laptop or flat
• How long your phone usually stays unfolded
• Time of day, weekdays and a weekday × hour heatmap
• Where you fold: a map of your fold spots and your top 3 places (optional)
• Full history of every recorded fold
QUESTIONS, ANSWERED
The Questions tab turns your data into plain-language insights:
• When do you fold the most?
• Is today busier than usual?
• Which weekday is your folding day?
• How long does it stay unfolded?
• Do you fold more on weekends?
• How long would the hinge last at this pace?
• Where do you fold the most?
ICLOUD BACKUP & STARTING COUNT
Signed in to iCloud? Your folds sync to your private iCloud, so your counts survive a reinstall or a new iPhone. Folded long before installing the app? Enter those folds and unfolds as a starting count in Settings – they're added to your totals, hinge lifetime and widgets. Today shows your folds total and unfolds total at a glance.
ESTIMATED HINGE LIFETIME
Set the rated number of folds (75,000 by default, adjustable) and see what percentage you've used and roughly how long your hinge will last at your current pace.
WIDGETS & SHORTCUTS
Keep your fold count
COUNTS LIVE, CATCHES UP LATER
While the app is open, it reads the system hinge sensor and counts every fold and unfold in real time. Folded it while the app was closed? When you come back, Duo Fold Counter notices the change and records it as an "inferred" fold, so your history stays complete. You can also log folds manually at any time.
OPTIONAL: COUNT WITH SHORTCUTS
Duo Fold Counter adds two actions to Apple's Shortcuts app: "Count Fold" and "Count Unfold". They run in the background without opening the app. Set up a personal automation once – Shortcuts → Automation → + → Display → "Opened or Closed" → Closed → Run Immediately → add "Count Fold" (and the same with Opened → "Count Unfold") – and every close and open of your iPhone Duo is counted, even when Duo Fold Counter isn't running. No location, no extra battery. Settings → "Shortcuts automation" adds the two ready-made shortcuts with one tap each and walks you through it. Requires iOS 27.2 or later.
ALTERNATIVE: COUNT IN THE BACKGROUND
Prefer not to use Shortcuts? Turn on "Count in background (GPS)" in Settings. iOS only lets apps keep running in the background with location, so while this is on the app keeps location active – you'll always see the location indicator – and detects folds with the magnetometer: the halves of your phone contain magnets, and closing it brings one close to the compass sensor. Folds detected this way get a "sensor" badge in your history. It's off by default and uses some extra battery.
STATISTICS THAT TELL A STORY
• Folds per day and your total over time
• Time spent folded, half open and unfolded
• Opening angles: tent, laptop or flat
• How long your phone usually stays unfolded
• Time of day, weekdays and a weekday × hour heatmap
• Where you fold: a map of your fold spots and your top 3 places (optional)
• Full history of every recorded fold
QUESTIONS, ANSWERED
The Questions tab turns your data into plain-language insights:
• When do you fold the most?
• Is today busier than usual?
• Which weekday is your folding day?
• How long does it stay unfolded?
• Do you fold more on weekends?
• How long would the hinge last at this pace?
• Where do you fold the most?
ICLOUD BACKUP & STARTING COUNT
Signed in to iCloud? Your folds sync to your private iCloud, so your counts survive a reinstall or a new iPhone. Folded long before installing the app? Enter those folds and unfolds as a starting count in Settings – they're added to your totals, hinge lifetime and widgets. Today shows your folds total and unfolds total at a glance.
ESTIMATED HINGE LIFETIME
Set the rated number of folds (75,000 by default, adjustable) and see what percentage you've used and roughly how long your hinge will last at your current pace.
WIDGETS & SHORTCUTS
Keep your fold count
Latest updates
1.2.1
Improvements
• Opening the app from the widget no longer adds an extra fold.
• Widgets now stay up to date, also after the app counted in the background.
• Redesigned widgets: the "Last 7 days" chart shows every weekday, totals are easier to read, and the hinge lifetime reads clearly even with few folds.
1.2
New: iCloud backup & starting count
• iCloud backup: your folds sync to your private iCloud and survive a reinstall or a new iPhone (works locally without iCloud).
• Starting count: add folds and unfolds from before you used the app in Settings – included in totals, hinge lifetime and widgets.
• New "Folds total" and "Unfolds total" tiles on Today.
New: count with Shortcuts
• Duo Fold Counter now adds "Count Fold" and "Count Unfold" actions to the Shortcuts app.
• Create a personal automation on "Opened or Closed" (iOS 27.2 or later) and every close and open of your iPhone is counted – even when Duo Fold Counter isn't running. No location, no extra battery.
• Settings → "Shortcuts automation": add the two ready-made shortcuts with one tap and follow the short guide.
• "Count in background" is now called "Count in background (GPS)" to tell it apart from Shortcuts.
• Folds counted this way get a "shortcut" badge in History.
1.0
Store changes
What Duo Fold Counter changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated
Description updated 
Description updated 
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