Bolt Reader® vs TDI Flasher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bolt Reader®
This application provides users with real-time bolt tension data through intuitive bar graphs. It is specifically designed to work with Bolt-Cap Module devices from Transmission Dynamics, helping users quickly identify screws needing attention.
- Real-time bolt tension information
- Bar graph data visualization
- Identify screws requiring attention
- Designed for Bolt-Cap Module devices
- Works with Transmission Dynamics hardware
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Thanks to the innovative undertaking of creating the Bolt Reader® application, users have constant access to information on bolt tension. Information is presented in the form of bar graphs, which allows you to quickly spot screws that require attention. This application is specifically designed for Bolt-Cap Module devices produced by Transmission Dynamics. Transmission Dynamics; Redefining the Status Quo
TDI Flasher
Remap your VAG TDI vehicle from home with this mobile tuning solution. Improve power and efficiency by flashing custom tunes. Requires a specific OBD adapter.
- Datalogging with BHP & Torque estimates
- Read & Clear Trouble Codes
- Remap/Flash vehicle with performance tunes
- Check OBD Readiness Status
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Revolutionising the TDI tuning market with a mobile flashing solution delivering high quality tunes in the palm of your hand. Improve the power and efficiency of your vehicle, remap your car from home with TDI Flasher. TDI Flasher OBD Adapter is required in order to flash your vehicle. Features - Datalogging (with estimated BHP & Torque values) - Read & Clear Trouble Codes - Remap/Flash your car with one of our Performance or Emissions solutions - Check OBD Readiness Status
Screenshots
Verdict
The clearest difference is rating: Bolt Reader® at 5.0 against TDI Flasher's 3.0. Bolt Reader® also leads on ads (none vs shown) and update cadence (every 5 weeks vs every 3 months). TDI Flasher's advantage is in-app purchases (none vs 1). On price, device support and iOS requirement 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. Bolt Reader® sells 1 one-off in-app purchase. TDI Flasher asks for nothing beyond the download.
Bolt Reader® holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 6 and 2 respectively.
Bolt Reader® ships an update every 5 weeks, TDI Flasher every 3 months. The most recent releases landed on June 4, 2026 and September 8, 2026 respectively.
| Parameter | Bolt Reader® | TDI Flasher |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 3.0 (2 ratings) |
| Number of ratings | 6 — better | 2 |
| Update frequency | Every 5 weeks — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 24 MB | 55 MB |
| Age rating | 4+ | 17+ |
| Developer | Transmission Dynamics | Mobile Flash Solutions Ltd |
Customer experience
Bolt Reader®
TDI Flasher
In-app purchases
Bolt Reader®
- Full version$49.99
TDI Flasher
No in-app purchases
