Comparison

RestOrTrain vs Vitals Sync

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

Head to head
About

RestOrTrain

This app uses AI to analyze your cycling training data, from individual workouts to your entire fitness history. It helps optimize your training plans based on your performance and recovery.

Highlights
  • AI-driven training analysis
  • Individual activity tracking
  • Fitness history evaluation
  • Personalized training optimization
  • Performance and recovery insights
Features
Read full description

AI that thinks about your training, from individual activities to your entire fitness history. Terms of Use: https://restortrain.com/terms Privacy Policy: https://restortrain.com/privacy

About

Vitals Sync

This app imports key health metrics from your Garmin device that are not automatically synced to your phone's health app. It securely transfers HRV, Respiration, SpO₂, and VO₂ Max data directly from your device.

Highlights
  • Syncs HRV, Respiration, SpO₂, and VO₂ Max
  • Automatic background sync
  • No duplicate entries
  • Secure token-based authentication
  • On-device processing
  • No app account or tracking
Features
Read full description

Vitals Sync imports four metrics your Garmin records but does not send to the Health app: HRV, Respiration, SpO₂, and VO₂ Max. Everything runs on your device. You sign in with your Garmin Connect account. The app reads the data your Garmin watch already recorded and writes it to the Health app on your iPhone. Most syncing tools cover only HRV. Vitals Sync does all four. WHAT YOU NEED • A Garmin Connect account • A Garmin watch that records these metrics, like the Forerunner, Fenix, Venu, vívoactive, Instinct, Epix, or Enduro series, and more WHAT IT SYNCS • Heart Rate Variability (HRV) • Respiration rate • Blood oxygen (SpO₂) • VO₂ Max FEATURES • Automatic background sync • No duplicates. Every reading is written once. • Your password is not stored. Only secure tokens, kept in the iOS Keychain on your device. • No account for this app, no tracking, no analytics, no servers PRIVACY Vitals Sync has no backend. It talks directly from your iPhone to your own Garmin account and to the Health app. We never see, collect, or store your data. Vitals Sync is an independent product and is not affiliated with, endorsed by, or sponsored by Garmin Ltd. or its subsidiaries, or by Apple Inc. Garmin® is a registered trademark of Garmin Ltd.

Screenshots

RestOrTrain4 screens
Vitals Sync4 screens

Verdict

The call

The clearest difference is in-app purchases: Vitals Sync at none against RestOrTrain's 6. Vitals Sync also leads on ads (none vs shown). RestOrTrain's advantage is rating (4.8 vs 4.3) and ratings volume (682 vs 6). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RestOrTrain sells 6 in-app purchases, starting at $14.99 per month. Vitals Sync asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

RestOrTrain holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: RestOrTrain has 682 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 62% of RestOrTrain's written reviews are positive against 50% of Vitals Sync's.

UpkeepUpdate frequency

RestOrTrain ships an update every 4 days, Vitals Sync fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard7 real differences · 3 level
RestOrTrain versus Vitals Sync: the parameters behind the verdict, then further details
ParameterRestOrTrainVitals Sync
PriceFreeFree
Rating4.8 (682 ratings) — better4.3 (6 ratings)
Positive reviews62.1% of reviews — better50.0% of reviews
Number of ratings682 — better6
Update frequencyEvery 4 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size32 MB4 MB
Age rating12+4+
DeveloperRESTORTRAIN SP Z O OUMUR GOKALP

Customer experience

RestOrTrain

All ratings682 ratings
Positive95.6%
Neutral1.8%
Negative2.6%
Written reviews66 reviews
Positive62.1%
Neutral7.6%
Negative30.3%

Vitals Sync

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

6 purchases

RestOrTrain

Subscriptions6
  • PRO Monthly1 Month trial$14.991 Month
  • PRO Monthly$14.991 Month
  • PRO Monthly7 Days trial$14.991 Month
Show 3 more
  • PRO Annual1 Month trial$134.991 Year
  • PRO Annual$134.991 Year
  • PRO Annual7 Days trial$134.991 Year
None

Vitals Sync

No in-app purchases

Questions

Is RestOrTrain free?
RestOrTrain is free to download, with in-app purchases available.
Is Vitals Sync free?
Vitals Sync is free to download, with no in-app purchases.
Which has better reviews, RestOrTrain or Vitals Sync?
RestOrTrain is rated higher. RestOrTrain averages 4.8 out of 5 from 682 ratings, while Vitals Sync averages 4.3 from 6 ratings.
Do RestOrTrain or Vitals Sync have ads?
RestOrTrain shows ads; Vitals Sync does not.
Which is updated more often, RestOrTrain or Vitals Sync?
RestOrTrain ships an update every 4 days, and Vitals Sync fortnightly. Most recently, RestOrTrain was updated on October 30, 2026 and Vitals Sync on October 31, 2026.

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