Fill Storage Downloads & RevenueFill Storage · App Store & Google Play
Fill Storage gets 1k+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Fill Storage by FINE CO., LTD. is on App Store and Google Play. Active Users (MAU & DAU), Downloads, rankings, keywords, revenue, and rating totals.
Full timeline · 17 events in the last 12 months
- 📦Fill Storage updated to version 2.1.0AndroidSupport for Android 16
- 📈Fill Storage new best rank in the overall chart: #19AndroidTop Free · All Apps · JP
- 📈Fill Storage new best rank in the overall chart: #20AndroidTop Free · All Apps · JP
- 📈Fill Storage new best rank in the overall chart: #21AndroidTop Free · All Apps · JP
- 📈Fill Storage new best rank in the overall chart: #30AndroidTop Free · All Apps · JP
- 📈Fill Storage new best rank in the overall chart: #31AndroidTop Free · All Apps · JP
- 📦Fill Storage updated to version 2.0.0AndroidImproved app stability.
- 🆕Fill Storage first spotted by AppInsideriOS#46 in Top Paid · Utilities · Japan
- 📈Fill Storage new best rank in the overall chart: #33AndroidTop Free · All Apps · JP
- 📈Fill Storage dropped out of every chart we trackiOSLast seen 26 Sep
- 📈Fill Storage new best rank in the overall chart: #39AndroidTop Free · All Apps · JP
- 📈Fill Storage new best rank in the overall chart: #40AndroidTop Free · All Apps · JP
- 🆕Fill Storage first spotted by AppInsiderAndroidJapan
- 📦Fill Storage updated to version 1.9.3AndroidImproved app stability.
- 📦Fill Storage version 1.9.4AndroidImproved app stability.
- 🆕Fill Storage released on the App StoreiOS
- 🆕Fill Storage released on Google PlayAndroid
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Tools FreeFill Storage at a glance
AI summary written from our chart and store data, 2026-09-28. It can be wrong: check the numbers above.
Fill Storage is a free utility for Android developers, testers, and privacy-conscious users that simulates low-storage conditions and securely erases data by filling storage with dummy files. The app currently ranks #5 in the Japanese Tools Free category and #146 in the Korean Tools Free category, indicating strong regional traction among technical users despite a moderate overall rating of 3.3 stars.
Similar apps: DiskUsage, SD Maid, File Manager
App Store
App details
Google Play
App details
Tech stack
Trackers and permissions of build v1.2.2, from the εxodus privacy report (CC BY-SA).
Fill Storage downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| App Store | – | – |
| Google Play | 1k+ | 1M+ Measured |
| Total | 1k+ Confidence | 1M+ Confidence |
How this is calculated
Where Fill Storage'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.
How this is calculated
In-app revenue
Worldwide, what users spend before Apple and Google take their fee.
| Store | Per day | Per month | Share |
|---|---|---|---|
| App Store | |||
| Google Play | |||
| Total | Confidence | 100% |
Business model: In-app purchase-led
How Fill Storage makes money: subscriptions, one-off purchases and ads.
Where it ranks now
Both stores, across every country we track.
| Store | Best rank | Charting in | US Top Free | US Top Grossing |
|---|---|---|---|---|
| App Store | – | 0 of 30 countries | – | – |
| Google Play | #15 Tools Free | 2 of 23 countries | – | – |
Full chart lists: App Store · Google Play.
Review momentum
ⓘ How we measure thisReview 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.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 0.0 ★ | – |
| Google Play | 3.3 ★ | 1.9k 27 written reviews |
| Both stores | 3.3 ★ weighted by ratings | 1.9k |
What users say about Fill Storage
From the 62 most recent Google Play reviews in the US.
Users appreciate the app's effectiveness in securely overwriting storage space for data protection and device testing. However, some users report crashes or misunderstand the function, expecting it to free up space rather than fill it.
Mostly positive (77% of recent reviews give 4–5 stars). People like it for being useful, and easy sign-in.
What people like
- Useful: “Very useful app thank you ♥️♥️ تطبيق رائع ومفيد”
- Login & account
- Speed & performance: “Tesh aap a fill in vary naice in vare fast yas you no place confirm ok bad tray again please 😎👍👌vaey swet”
- Ease of use: “Fill Space, Is EASY to use”
About Fill Storage
本アプリはストレージの空き容量に合わせ、ファイルを作成することができます。
本アプリで作成されたファイルは、アプリ内で削除することが可能です。
Fill Storage App Store
Fill Storage gets 1k+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Not in any tracked top chart right now.
Updated 8 Nov 2026 · rankings refresh through the day
27 Sep 2026Fill Storage on the App Store
App details
Fill Storage downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Where Fill Storage'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.
How this is calculated
In-app revenue
Worldwide, what users spend in Fill Storage before Apple and Google take their fee.
How this is calculated
Business model: In-app purchase-led
How Fill Storage makes money: subscriptions, one-off purchases and ads.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
About Fill Storage
本アプリはストレージの空き容量に合わせ、ファイルを作成することができます。
本アプリで作成されたファイルは、アプリ内で削除することが可能です。
Latest updates
Fill Storage Android
Fill Storage gets 1k+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Fill Storage is #15 in Tools Free on Google Play in Japan and charting in 2 of 23 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
Tools FreeFill Storage at a glance
AI summary written from our chart and store data, 2026-09-28. It can be wrong: check the numbers above.
Fill Storage is a free utility for Android developers, testers, and privacy-conscious users that simulates low-storage conditions and securely erases data by filling storage with dummy files. The app currently ranks #5 in the Japanese Tools Free category and #146 in the Korean Tools Free category, indicating strong regional traction among technical users despite a moderate overall rating of 3.3 stars.
Similar apps: DiskUsage, SD Maid, File Manager
Fill Storage on Google Play
App details
Tech stack
Trackers and permissions of build v1.2.2, from the εxodus privacy report (CC BY-SA).
Fill Storage downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Where Fill Storage'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.
Retention · share of new users still active
Time spent · per daily user
How this is calculated
In-app revenue
Worldwide, what users spend in Fill Storage before Apple and Google take their fee.
How this is calculated
Business model: In-app purchase-led
How Fill Storage makes money: subscriptions, one-off purchases and ads.
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | ToolsFree | #15 |
| Japan | All AppsFree | #68 |
 South Korea | ToolsFree | #109 |
Apps near Fill Storage on the chart
Tools Free, around #15.
Ratings
Google Play, worldwide.
Review momentum
ⓘ How we measure thisReview 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 Fill Storage
From the 62 most recent Google Play reviews in the US.
Users appreciate the app's effectiveness in securely overwriting storage space for data protection and device testing. However, some users report crashes or misunderstand the function, expecting it to free up space rather than fill it.
Mostly positive (77% of recent reviews give 4–5 stars). People like it for being useful, and easy sign-in.
What people like
- Useful: “Very useful app thank you ♥️♥️ تطبيق رائع ومفيد”
- Login & account
- Speed & performance: “Tesh aap a fill in vary naice in vare fast yas you no place confirm ok bad tray again please 😎👍👌vaey swet”
- Ease of use: “Fill Space, Is EASY to use”
About Fill Storage
🔹 Key Features:
✅ Low Storage Simulation for Testing
‣ Ideal for developers and testers to check how apps behave when storage is almost full.
✅ Secure Data Erasure
‣ Fills storage with dummy files to overwrite deleted data, preventing recovery.
✅ Customizable Storage Filling
‣ Fixed Sizes: 10MB, 100MB, 1GB
‣ Percentage-Based: 30%, 60%, 90%
✅ Easy Cleanup
‣ All generated files can be deleted instantly with a single tap.
🔹 Who Can Benefit?
📌 Android Developers & Testers – Ensure apps function properly in low-storage conditions.
📌 Privacy-Conscious Users – Prevent deleted data from being recovered.
📌 Anyone Needing Storage Control – Experiment with storage management easily.
Whether you're testing app performance or securely erasing data, Fill Storage provides a simple and effective solution. Download now and take control of your storage! 🚀