ScopeTool vs Universal Load Controller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScopeTool
This app assists with telescope setup and alignment, providing tools like a compass, level, and calculators for celestial objects. It allows manual or GPS-based location input and offers customizable tool visibility for use in low light.
- Compass and level
- Polaris hour angle calculator
- Jupiter and Saturn moon positions
- Red/white flashlight with timer
- Manual or GPS location input
- Customizable tool visibility
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ScopeTool by Krydo helps as you set up, align and use your telescope for a good night's viewing. It includes the tools • Compass & level • Polaris hour angle and transit calculator • Positions for the main satellite moons of Jupiter and Saturn* • Red or white flashlight, with screen lock and timer functions ScopeTool can find your location by either using your device's location services (eg GPS), or you can enter your coordinates manually. The Settings tool allows you to tailor the app to your needs; turn off tools you don't use so it's easy to select the ones you want in the dark. More tools are coming; visit http://scopetool.krydo.com or tweet us on @KrydoDev to keep up with their progress, and let us know what would be useful to you! * For Jupiter, the four Galilean moons are shown. For Saturn, satellites I-VIII are included. A limiting magnitude control allows you to hide objects that are too faint to be seen, so you can match the diagram to what you can see. The location of Jupiter's Great Red Spot and attitude of Saturn's rings are also included.
Universal Load Controller
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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 log • PDF test report with the run summary • Share sheet support for both Perfect for battery capacity verification, cell matching and sorting, quality control, hobby electronics and lab use. SAFETY: You are testing real cells at real currents. Always verify current and cutoff values on the device itself, use protected cells or a current-limited bench setup, keep physical access to the load's stop control, and never leave a running test unattended. Universal Load Controller is an independent app. It is not affiliated with, endorsed by, or supported by Atorch.
Screenshots
Verdict
The clearest difference is price: ScopeTool at Free against Universal Load Controller's $5.99. ScopeTool also leads on iOS requirement (9.0 vs 17.0). Universal Load Controller's advantage is update cadence (every 2 weeks vs every 9 months). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
ScopeTool is free to download; Universal Load Controller costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ScopeTool ships an update every 9 months, Universal Load Controller every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | ScopeTool | Universal Load Controller |
|---|---|---|
| Price | Free — better | $5.99 |
| Rating | 3.8 (4 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 9 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | H Crossley | Hendrik Kaiser |
In-app purchases
ScopeTool
No in-app purchases
Universal Load Controller
No in-app purchases
Questions
Is ScopeTool free?
Is Universal Load Controller free?
Do ScopeTool or Universal Load Controller have ads?
Which is updated more often, ScopeTool or Universal Load Controller?
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