# Training Today vs Arc Timeline 4

The clearest difference is rating: Training Today at 4.6 against Arc Timeline 4's 4.0. Training Today also leads on ratings volume (2.6K vs 27) and iOS requirement (16.0 vs 26.0). Arc Timeline 4's advantage is update cadence (weekly vs every 6 weeks). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Training Today sells 4 in-app purchases, starting at $2.95 per month and Arc Timeline 4 sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Training Today holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Training Today has 2.6K ratings behind it against 27, so its average is the more settled of the two. Written reviews complicate that: 53% of Training Today's written reviews are positive against 59% of Arc Timeline 4's, so the app with the better star average is not the one people write more warmly about.

Training Today ships an update every 6 weeks, Arc Timeline 4 weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Training Today | Arc Timeline 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (2.6K ratings)](https://appshunter.io/ios/app/training-today/id1507992127/reviews)** | [4.0 (27 ratings)](https://appshunter.io/ios/app/arc-timeline-4/id6740688708/reviews) |
| Number of ratings | **2.6K** | 27 |
| Positive reviews | 52.5% of reviews | **59.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 48 MB | 68 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Betoli Ltd](https://appshunter.io/developer/1507992126) | [Matthew Bruce Greenfield](https://appshunter.io/developer/444610547) |

## What reviewers say

### Training Today

[App page](https://appshunter.io/ios/app/training-today/id1507992127)

This app analyzes your Apple Watch health data to provide a daily readiness to train score. It helps prevent overtraining injuries and guides your training intensity, offering insights into your body's recovery and performance potential.

**Highlights:** Calculates daily readiness to train (RTT) score, Multi-day RTT score chart, Independent Apple Watch app, Uses HRV, workout detection, and custom algorithm, Automatic data outlier filtering, iPhone companion app with tutorial, Complication support for quick RTT glance

**Features:** Family Sharing, Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $2.95 | per month |
| Yearly subscription | $29.99 | per year |
| Additional charts | $5.99 | one-time |
| Lifetime | $59.99 | one-time |

**What reviewers like**

- 🚀 Sync to the workouts app is magic
- 👍 Helpful tool for understanding when my body needs to recover and when it can push harder
- 👍 Great visualization helps me keep tabs on my health
- 👍 Awesome app with a ton of data and an easy to use interface
- 👍 HRV Trend Tracking provides a weather forecast for your body

**What reviewers complain about**

- 🐛 Obscure and buggy with readiness indicators not matching other apps
- 🐛 Inaccurate data that doesn't match how I feel
- 🐛 Constantly showing low readiness scores even when I feel great
- 🐛 Conflicting data between this app and other sleep/recovery trackers
- 🐛 Calculations for readiness seem better with other apps like TrainingPeaks

**Reported bugs**

- Crashes on launch after purchasing subscription
- Widgets not working after recent updates
- Discrepancies between data shown on iPhone and Apple Watch
- Inability to get HRV readings without using the Breathe app

**Requested features**

- Extend the number of days shown on the chart
- Add more data points like sleep and oxygen levels
- Provide more detailed explanations of the metrics and how they are calculated
- Improve the Apple Watch complication to update more frequently
- Integrate with other fitness platforms like Garmin and Polar


### Arc Timeline 4

[App page](https://appshunter.io/ios/app/arc-timeline-4/id6740688708)

This app automatically tracks your location history, including how you travel and how long you stay at places. It learns your habits to provide a detailed, searchable timeline of your daily life, offering insights into your activity and health metrics.

**Highlights:** Automatic background location recording, Smart learning engine for place recognition, Detects over 20 activity types, Searchable trip and place history, Health and activity insights (heart rate, calories), Data stored on device with optional iCloud backup

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $44.99 | per year |
| Lifetime Purchase | $219.99 | one-time |


## Frequently asked questions

### Is Training Today free?

Training Today is free to download, with in-app purchases available.

### Is Arc Timeline 4 free?

Arc Timeline 4 is free to download, with in-app purchases available.

### Which has better reviews, Training Today or Arc Timeline 4?

Training Today is rated higher. Training Today averages 4.6 out of 5 from 2.6K ratings, while Arc Timeline 4 averages 4.0 from 27 ratings.

### Do Training Today or Arc Timeline 4 have ads?

Neither Training Today nor Arc Timeline 4 shows ads.

### Which is updated more often, Training Today or Arc Timeline 4?

Training Today ships an update every 6 weeks, and Arc Timeline 4 weekly. Most recently, Training Today was updated on November 3, 2026 and Arc Timeline 4 on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*