Analyze electric unicycle battery health from ride logs
About this app
Put your HTML text hereEUC SoH is a state-of-health (SoH) analysis tool for electric unicycles. It processes ride logs from popular EUC logging apps to estimate battery health, internal resistance, and long-term degradation patterns.
The app runs entirely on-device, without trackers or network access. It is fully free and open source under the AGPL license.
Main features:
• Scan storage recursively to discover WheelLog and EUC World subfolders and CSV log files automatically (optional support for DarknessBot dumps).
• Parse ride logs and separate accepted files from rejected ones, with explicit rejection reasons (e.g. too few data points, invalid Req computation).
• Compute state-of-health metrics such as equivalent resistance (Req) and CUSUM-based indicators.
• Display interactive charts (MPAndroidChart) to visualize resistance evolution and SoH trends over time.
• Maintain per-wheel file management: inspect logs per wheel, exclude problematic files, and keep a clean dataset.
• Export a structured archive for resale, expertise, or maintenance: PDF report (soh.pdf), statistics CSV, and associated logs organized by wheel identifier.
• Share generated PDF and archives directly via messaging apps, email, or cloud storage.
• Work fully offline: no account, no registration, no external server.
Typical workflow:
A - Your own wheel
• Record rides using WheelLog, EUC World, or DarknessBot.
• The app scans storage for folders containing compatible logs.
• If using DarknessBot: export a dump (.dbb) and enable .dbb search in the app.
B - Purchased wheel with EUC SoH archive
• Import the archive into the app.
Start analysis
• Scan subfolders recursively to find compatible CSV files and group them by wheel.
• Run SoH analysis to compute Req and related metrics.
• Inspect charts to evaluate long-term battery degradation.
• Review accepted and rejected log files.
• Export a PDF report and structured archive for sharing or record keeping.
EUC SoH is intended for technically minded riders, enthusiasts, and repair shops who need transparent and reproducible diagnostics for electric unicycle battery health.
Based on: https://hal.science/hal-05553115
Licensed under AGPL-3.0-or-later, by Gauthier LE BARTZ LYAN.
What's New in v1.53
Imported from the F-Droid repository index.
- Latest features:
- - Enhanced support for older Android versions (up to Android 10)
- - Enhanced legacy EUC World support
- - Enhanced information section
- - Unified charts - information section legend colors
- - Updated PWM charts with standard limit lines: 60% green, 80% orange, 90% red
Version history
May 29, 2026 · 29.2 MB · Android API 26–36 · code 20
Imported from the F-Droid repository index.
- Latest features:
- - Enhanced support for older Android versions (up to Android 10)
- - Enhanced legacy EUC World support
- - Enhanced information section
- - Unified charts - information section legend colors
- - Updated PWM charts with standard limit lines: 60% green, 80% orange, 90% red
SHA-256 9c5ed3f09fc5e23508efa4c899f57edfec0028ff9cc9e014242cedc0f8f835e7
May 14, 2026 · 29.2 MB · Android API 26–36 · code 18
Imported from the F-Droid repository index.
SHA-256 aac9c98000b149f80df677082bca2e94a5012d556b905768ded161b3d07c0684
Apr 30, 2026 · 29 MB · Android API 26–36 · code 17
Imported from the F-Droid repository index.
SHA-256 92c7325e87e75f4d521760987f735c18dbffd7688b8e7aff6f38c2b17827105d
Will it run on your device?
92%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be io.github.eucsoh.android is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 1.51 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall EUC State Of Health Analyzer first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of EUC State Of Health Analyzer, and a listing is removed when the evidence for it stops holding up.
Get EUC State Of Health Analyzer
Every source we list for io.github.eucsoh.android is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
9c5ed3f09fc5e23508efa4c899f57edfec0028ff9cc9e014242cedc0f8f835e7
Signing certificate
d479b06aa518e2e2f67bbe0609e110c25e5c5280ca16192cee1ccfe99d1065cf
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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