Comparison

Sentry Connect vs Annex B

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sentry Connect

This app allows you to view and manage dashcam footage from your car's USB port. It provides real-time car status, playback of drives with overlays, charging history, and secure cloud storage. It's designed for easy access to your vehicle's data.

Highlights
  • View car status (battery, range, temps)
  • Playback dashcam footage with overlays
  • Replay drives with speed and map data
  • Track charging sessions and costs
  • Secure encrypted cloud storage
  • File management and alerts
  • Metric/imperial unit selection
Features
Read full description

Sentry Connect is the companion app for Sentry USB, the Raspberry Pi that turns your car's USB port into a smarter dashcam drive. See your car, watch your footage, replay your drives and track every charge, all from your iPhone or iPad. No web browser needed. Version 2.0 rebuilds the app from the ground up. HOME Your car at a glance: battery, range, temperatures, tire pressures and Sentry Mode, with Sync, Keep Awake and Away Mode a tap away. CLIPS Smooth playback across every camera, with live speed, gear, turn signals, braking and self-driving overlays, plus a map that follows the car. DRIVES Every drive on a map you can replay, with your self-driving share, speed charts and tags. FSD tracking works for all cars, even Hardware 3. CHARGING Charge, power and range charts for every session, with costs that follow your rates and schedules. SENTRY CLOUD Sign in and your drives and charging history come with you, encrypted so only you can read them. MADE FOR EVERY SCREEN iPad puts everything side by side. On iPhone Duo you get two pages when folded like a book, one big screen when flat, and a cover screen layout of its own. AND MORE Pair your Pi with your car as a key, browse and manage files, get alerts for Sentry events, choose metric or imperial right down to tire pressure, and let your Pi install stable updates on its own. Not set up yet? Explore the Demo shows every screen with sample data. Requires a Sentry USB running v3.26.4 or newer. Learn more at sentry-six.com. Built by Tesla owners, for Tesla owners. Sentry Connect is not affiliated with Tesla, Inc.

About

Annex B

Access and manage your vehicle's dashcam footage directly from your iPhone or iPad. Browse, preview, download, and convert drive recordings for easy playback or sharing without needing an account or cloud services.

Highlights
  • Direct local network connection
  • Browse and preview drives
  • Download full drives or segments
  • Convert HEVC to H.264
  • No account or cloud needed
  • Offline access
Features
Read full description

Your comma device records the road. Annex B makes those drive videos easy to use on iPhone and iPad. Connect directly to a compatible comma device on your local network. Browse recent drives, preview road-camera footage, download full drives or individual one-minute segments, and prepare standard MP4 videos for playback or Photos. Choose Original Quality to preserve the camera’s HEVC stream without re-encoding, or Compatibility to convert it to H.264 for easier sharing. Designed to stay local: • No account needed • No analytics or cloud relay • Read-only SSH/SFTP access to your comma device • Pinned SSH host keys • Private keys stored only in this device’s Keychain • Photos add-only permission Requirements: • A compatible comma device on the same local network • SSH enabled on the device • A GitHub account configured on the comma device for SSH keys Annex B includes four clearly labeled Sample Drives so you can explore the app before connecting hardware. **Not affiliated with or endorsed by comma.ai, Inc. comma and openpilot are trademarks of comma.ai, Inc.**

Screenshots

Sentry Connect4 screens
Annex B4 screens

Verdict

The call

The clearest difference is update cadence: Sentry Connect at every 3 days against Annex B's weekly. Sentry Connect also leads on iOS requirement (18.0 vs 26.0). On price, rating, ratings volume and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Sentry Connect against 5.0 for Annex B. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Sentry Connect ships an update every 3 days, Annex B weekly. The most recent releases landed on November 5, 2026 and November 4, 2026 respectively.

Scorecard2 real differences · 8 level
Sentry Connect versus Annex B: the parameters behind the verdict, then further details
ParameterSentry ConnectAnnex B
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyEvery 3 days — betterWeekly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.0 — better26.0
Further details — not scored
Size14 MB37 MB
Age rating4++4
DeveloperScott VandereemsConnor Larkin

Customer experience

Sentry Connect

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Annex B

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sentry Connect

No in-app purchases

None

Annex B

No in-app purchases

Questions

Is Sentry Connect free?
Sentry Connect is free to download, with no in-app purchases.
Is Annex B free?
Annex B is free to download, with no in-app purchases.
Which has better reviews, Sentry Connect or Annex B?
Sentry Connect and Annex B are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Sentry Connect or Annex B have ads?
Neither Sentry Connect nor Annex B shows ads.
Which is updated more often, Sentry Connect or Annex B?
Sentry Connect ships an update every 3 days, and Annex B weekly. Most recently, Sentry Connect was updated on November 5, 2026 and Annex B on November 4, 2026.

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