Universal Load Controller Downloads & RevenueUniversal Load Controller · App Store
Universal Load Controller is #100 in Utilities Paid in Canada and charting in 2 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperHendrik Kaiser
CategoryUtilities
Price7.99 CAD
Released
Rating★ 0.0 (0)
Version1.0.21
Age rating4+
First seen by us
21 Oct 2026
21 Oct 2026Universal Load Controller update history & changes
Last change · 6 events since 20 Mar 2026Full timeline ↓📦Updated to version 1.0.22📈Charting in a new country in 2 charts📈Entered the top 100🆕First spotted by AppInsider📦Version 1.0.21🆕Released on the App Store
Full timeline · 6 events
- 📦Universal Load Controller updated to version 1.0.22• Adds live-value polling and logging for DL24 firmware v1.1.
• Improves device telemetry diagnostics and stop-state confirmation.
• Keeps full direct setpoint control and automated cycles for firmware v5.1. - 📈Universal Load Controller charting in a new country in 2 chartsAustralia · Canada
- 📈Universal Load Controller entered the top 100Top Paid · Utilities · CA
- 🆕Universal Load Controller first spotted by AppInsider#46 in Top Paid · All Apps · Turkey
- 📦Universal Load Controller version 1.0.21• First-run tutorial: a short guided introduction the first time you open the app, repeatable any time from Settings.
• New offline User Guide in Settings, covering how to connect a device, run a discharge test, work with presets and cycles, read results and export them, plus safety and troubleshooting.
• The guide states clearly which DL24 firmware does what: v5.1 accepts automatic current and cutoff setpoints and complete test cycles, while v1.1 only supports button-style remote control.
• Notification access is no longer requested at launch; the app now reflects the actual system permission state.
• Tutorial and User Guide are available in all 11 app languages.… more - 🆕Universal Load Controller 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
0.0 ★
0 ratings
Measured
Best rank now
#100
Utilities PaidMeasured
Universal Load Controller on the App Store
App details
App ID
6760568473
Publisher
Hendrik Kaiser
On the store since
Mar 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
11
EN FR DE IT JA PL PT RU ZH ES UK
Size
4 MB
Also listed in
Developer Tools
Where Universal Load Controller's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Canada | UtilitiesPaid | #100 |
 Australia | UtilitiesPaid | #173 |
Apps near Universal Load Controller on the chart
Utilities Paid, around #100.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About Universal Load Controller
Universal Load Controller — Professional Battery Testing
Control your Atorch DL24 / DL24P electronic load from your iPhone or iPad for precise battery capacity testing, logging and analysis.
BEFORE YOU BUY — COMPATIBILITY
iOS cannot use classic Bluetooth SPP, which is what the stock DL24/DL24P Bluetooth module uses. Please check the following list first.
WORKS FULLY — DL24 firmware v5.1 (+ BLE serial adapter)
• Direct setpoints: discharge current and cutoff voltage sent from the app
• Start / stop of the load from the app
• Read-back of the applied settings
• Automated multi-phase test cycles (discharge, rest, ramp)
• Live values, charts, capacity/energy logging, CSV and PDF export
WORKS WITH LIMITS — DL24 firmware v1.1 (legacy)
• Firmware v1.1 accepts button emulation only: SETUP, OK/On-Off, +/-
• It does NOT accept direct commands for exact current or cutoff values
• Therefore automated app cycles are blocked on v1.1 by design — the app tells you instead of applying a wrong setpoint to your cell
• Recommended use: set current and cutoff manually on the DL24, then use the app in Manual mode for live values, timing, logging, charts and export
• Select "Firmware v1.1" in Settings, Protocol, so the app uses the matching command set
DOES NOT WORK
• Stock classic-Bluetooth (SPP) module: iOS does not allow regular apps to use SPP. A BLE serial module or BLE-to-serial bridge is required.
• USB / HID connection to the load (iOS has no equivalent of the vendor PC app)
• CR / CP / CV modes: the Atorch protocol exposes only constant current (CC). Other modes can neither be read nor set — by any app, on any firmware.
• iOS 16 or older — this app requires iOS 17.0 or newer.
REQUIRED HARDWARE FOR A REAL CONNECTION
• Atorch DL24 / DL24P electronic load, plus one of:
- a BLE serial module (HM-10 or compatible, service FFE0 / characteristic FFE1) in place of the classic Bluetooth module, or
- an external BLE-to-serial bridge exposing FFE0/FFE1 or the Nordic UART Service (6E400001-B5A3-F393-E0A9-E50E24DCCA9E)
• Related Atorch meters advertising as DL24P, DL24_BLE, DL24, AT24, UD24, UD18 or DT24 are detected during the scan, but only the DL24 load family is supported for control.
NO HARDWARE? Simulation Mode runs the complete app with a realistic simulated discharge, so you can evaluate every screen before buying an adapter.
FEATURES
BATTERY TESTING
• Constant-current discharge with adjustable cutoff voltage
• Real-time voltage, current, power and temperature
• Capacity (mAh) and energy (Wh) measurement
• Time and capacity limits
LIVE DATA
• Real-time discharge curves with zoom and pan
• Voltage, current and capacity plots
• Live Activity on the Lock Screen, Always-On Display and Dynamic Island
• Home Screen widgets for the running test
• Background Bluetooth so a test keeps logging
TEST CYCLES (firmware v5.1)
• Presets for LiPo, Li-Ion, LiFePO4 and NiMH
• Custom cycles with discharge, rest and ramp phases
EXPORT
• CSV export of the full measurement l
Control your Atorch DL24 / DL24P electronic load from your iPhone or iPad for precise battery capacity testing, logging and analysis.
BEFORE YOU BUY — COMPATIBILITY
iOS cannot use classic Bluetooth SPP, which is what the stock DL24/DL24P Bluetooth module uses. Please check the following list first.
WORKS FULLY — DL24 firmware v5.1 (+ BLE serial adapter)
• Direct setpoints: discharge current and cutoff voltage sent from the app
• Start / stop of the load from the app
• Read-back of the applied settings
• Automated multi-phase test cycles (discharge, rest, ramp)
• Live values, charts, capacity/energy logging, CSV and PDF export
WORKS WITH LIMITS — DL24 firmware v1.1 (legacy)
• Firmware v1.1 accepts button emulation only: SETUP, OK/On-Off, +/-
• It does NOT accept direct commands for exact current or cutoff values
• Therefore automated app cycles are blocked on v1.1 by design — the app tells you instead of applying a wrong setpoint to your cell
• Recommended use: set current and cutoff manually on the DL24, then use the app in Manual mode for live values, timing, logging, charts and export
• Select "Firmware v1.1" in Settings, Protocol, so the app uses the matching command set
DOES NOT WORK
• Stock classic-Bluetooth (SPP) module: iOS does not allow regular apps to use SPP. A BLE serial module or BLE-to-serial bridge is required.
• USB / HID connection to the load (iOS has no equivalent of the vendor PC app)
• CR / CP / CV modes: the Atorch protocol exposes only constant current (CC). Other modes can neither be read nor set — by any app, on any firmware.
• iOS 16 or older — this app requires iOS 17.0 or newer.
REQUIRED HARDWARE FOR A REAL CONNECTION
• Atorch DL24 / DL24P electronic load, plus one of:
- a BLE serial module (HM-10 or compatible, service FFE0 / characteristic FFE1) in place of the classic Bluetooth module, or
- an external BLE-to-serial bridge exposing FFE0/FFE1 or the Nordic UART Service (6E400001-B5A3-F393-E0A9-E50E24DCCA9E)
• Related Atorch meters advertising as DL24P, DL24_BLE, DL24, AT24, UD24, UD18 or DT24 are detected during the scan, but only the DL24 load family is supported for control.
NO HARDWARE? Simulation Mode runs the complete app with a realistic simulated discharge, so you can evaluate every screen before buying an adapter.
FEATURES
BATTERY TESTING
• Constant-current discharge with adjustable cutoff voltage
• Real-time voltage, current, power and temperature
• Capacity (mAh) and energy (Wh) measurement
• Time and capacity limits
LIVE DATA
• Real-time discharge curves with zoom and pan
• Voltage, current and capacity plots
• Live Activity on the Lock Screen, Always-On Display and Dynamic Island
• Home Screen widgets for the running test
• Background Bluetooth so a test keeps logging
TEST CYCLES (firmware v5.1)
• Presets for LiPo, Li-Ion, LiFePO4 and NiMH
• Custom cycles with discharge, rest and ramp phases
EXPORT
• CSV export of the full measurement l
Latest updates
1.0.22
• Adds live-value polling and logging for DL24 firmware v1.1.
• Improves device telemetry diagnostics and stop-state confirmation.
• Keeps full direct setpoint control and automated cycles for firmware v5.1.
1.0.21
• First-run tutorial: a short guided introduction the first time you open the app, repeatable any time from Settings.
• New offline User Guide in Settings, covering how to connect a device, run a discharge test, work with presets and cycles, read results and export them, plus safety and troubleshooting.
• The guide states clearly which DL24 firmware does what: v5.1 accepts automatic current and cutoff setpoints and complete test cycles, while v1.1 only supports button-style remote control.
• Notification access is no longer requested at launch; the app now reflects the actual system permission state.
• Tutorial and User Guide are available in all 11 app languages.