File Glider vs Decay Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
File Glider
Wirelessly transfer files to and from compatible Bluetooth Low Energy or Wi-Fi devices. Browse, edit, and manage files directly within the app or integrate with the Files app for broader access. Supports multiple device management and sharing across applications.
- Wireless file transfer
- BLE and Wi-Fi support
- File browsing and editing
- Files app integration
- Multiple device management
- Cross-app access sharing
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Wirelessly transfer files to and from file transfer ready Bluetooth Low Energy (BLE) or Wi-Fi firmware. Browse and edit files from within File Glider or use the Files app integration to access the files from other apps. Multiple devices can be managed at once and access can be shared amongst multiple apps. Compatible devices: * nrf52840 boards running CircuitPython * ESP32-S2 TFT The file transfer protocol is open so you can use File Glider with custom firmware. See GitHub for protocol details: https://github.com/adafruit/Adafruit_CircuitPython_BLE_File_Transfer Source for the app is here: https://github.com/adafruit/Glider-for-iOS
Decay Lab
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DecayLab makes radionuclide decay calculations and radiation unit conversions quick and straightforward. Designed for nuclear medicine professionals, researchers, educators, and students, it provides a clean, focused workflow that works entirely offline. Key features: • Calculate radioactive decay for a wide range of radionuclides • View activity at different reference and calculation times • Apply decay corrections quickly and consistently • Work with Bq, kBq, MBq, GBq and TBq, alongside nCi, µCi, mCi and Ci • Convert absorbed dose in Gy and rad, and equivalent dose in Sv and rem • Convert dose rates per second, minute, hour or day • See one value in every other unit at once, rather than one pair at a time • Access built-in radionuclide half-life data for 1,625 nuclides • Use all calculation features without an internet connection Gray and sievert are kept in separate tables. Converting between them requires a radiation weighting factor, which is a judgement about radiation type rather than a unit conversion, so DecayLab does not offer it. DecayLab is useful for: • Nuclear medicine technologists • Medical physicists • Radiation safety professionals • Researchers and educators • Students in nuclear medicine and related fields Whether you're checking an activity value, preparing calculations for a workflow, or studying radioactive decay, DecayLab keeps the process clear and efficient. Important: DecayLab is a calculation and educational tool. Results should be independently verified before being used in clinical, diagnostic, therapeutic, or safety-critical decisions.
Screenshots
Verdict
The clearest difference is update cadence: Decay Lab at every 4 days against File Glider's every 10 months. File Glider's advantage is iOS requirement (15.0 vs 17.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
File Glider ships an update every 10 months, Decay Lab every 4 days. The most recent releases landed on October 1, 2026 and October 19, 2026 respectively.
| Parameter | File Glider | Decay Lab |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 10 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Adafruit Industries | Carlos Uribe |
In-app purchases
File Glider
No in-app purchases
Decay Lab
No in-app purchases









