# Activity Plus vs Interval Flow

The clearest difference is monetization model: Activity Plus at free with in-app purchases against Interval Flow's subscription. Activity Plus also leads on ratings volume (2K vs 168). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Activity Plus sells 4 in-app purchases, starting at $2.99 per 7 days and Interval Flow sells 10 in-app purchases, starting at $4.99 per 3 months. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Activity Plus against 4.7 for Interval Flow. That said, the two scores are not equally well evidenced: Activity Plus has 2K ratings behind it against 168, so its average is the more settled of the two. Written reviews are what separate them: 51% of Activity Plus's written reviews are positive against 48% of Interval Flow's.

Activity Plus ships an update every 2 weeks, Interval Flow fortnightly. The most recent releases landed on September 24, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Activity Plus | Interval Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (2K ratings)](https://appshunter.io/ios/app/activity-plus/id1427590589/reviews) | **[4.7 (168 ratings)](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987/reviews)** |
| Number of ratings | **2K** | 168 |
| Positive reviews | **50.9% of reviews** | 48.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 74 MB | 20 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gaivoronski Andrei Vyacheslavovich, IP](https://appshunter.io/developer/1038175625) | [Bence Kaposzta](https://appshunter.io/developer/1650069302) |

## What reviewers say

### Activity Plus

[App page](https://appshunter.io/ios/app/activity-plus/id1427590589)

This app helps you maintain your activity streaks and recover lost ones by closing your rings. It offers global challenges, customizable widgets, and detailed progress insights to keep you motivated and informed about your fitness journey.

**Highlights:** Streak recovery for activity rings, Global fitness challenges, Customizable home screen widgets, Monthly challenges and awards, Graphical progress insights, Comprehensive activity tracking, Audio and video-guided workouts

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Activity+ | $2.99 | per 7 days |
| Activity+ | $6.99 | per month |
| Activity+ | $29.99 | per year |
| Close Rings | $1.99 | one-time |

**What reviewers like**

- 👍 Great app
- 🤩 Excellent app
- 🔥 Top Hottest #1
- 👌 Impressive
- 👍 Keeps me accountable

**What reviewers complain about**

- 🐛 Doesn't sync/update well
- 🐛 Challenges not being recorded
- 🐛 Stair count not working
- 🐛 Doesn't track workouts accurately
- 🐛 Unreliable data

**Reported bugs**

- Crashes frequently
- Syncing issues
- Inaccurate data tracking
- Compatibility issues with older devices

**Requested features**

- Add ability to manually log exercises
- Add water intake tracking
- Improve widget customization
- Sync data across devices
- Add more workout options


### Interval Flow

[App page](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987)

This app revolutionizes fitness routines with deep customization and advanced tracking for various activities like HIIT, Yoga, and CrossFit. It allows users to create, share, and follow personalized workouts with features like color-coded intervals, real-time progress tracking, and voice assistance.

**Highlights:** Color-coded intervals, Customizable circuits, Real-time progress tracking, Voice assist and search, Exercise library, Workout sharing

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Month | $4.99 | per 3 months |
| 1 Month | $9.99 | per month |
| 1 Month, 3 day trial | $9.99 | per month |
| Annual | $14.99 | per year |
| 1 Year discounted | $25.95 | per year |
| 1 Year, 3 day trial | $39.99 | per year |
| 1 Year | $39.99 | per year |
| 1 Year Intro month | $39.99 | per year |
| Free Lifetime subscription | Free | one-time |
| Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Activity Plus free?

Activity Plus is free to download, with in-app purchases available.

### Is Interval Flow free?

Interval Flow is free to download, with in-app purchases available.

### Which has better reviews, Activity Plus or Interval Flow?

Interval Flow is rated higher. Activity Plus averages 4.6 out of 5 from 2K ratings, while Interval Flow averages 4.7 from 168 ratings.

### Do Activity Plus or Interval Flow have ads?

Neither Activity Plus nor Interval Flow shows ads.

### Which is updated more often, Activity Plus or Interval Flow?

Activity Plus ships an update every 2 weeks, and Interval Flow fortnightly. Most recently, Activity Plus was updated on September 24, 2026 and Interval Flow on September 5, 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.*