# Subintervals vs SOLLO

The clearest difference is in-app purchases: SOLLO at none against Subintervals's 4. Subintervals's advantage is update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Subintervals sells 4 one-off in-app purchases. SOLLO asks for nothing beyond the download.

Subintervals ships an update weekly, SOLLO every 3 weeks. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Subintervals | SOLLO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/subintervals/id6479748688/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 95 MB | 63 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Inaki Arroyo Nebreda](https://appshunter.io/developer/1736987639) | [Movmenta](https://appshunter.io/developer/1677220327) |

## What reviewers say

### Subintervals

[App page](https://appshunter.io/ios/app/subintervals/id6479748688)

Visualize your training data with detailed displays and interactive graphs. Customize your analysis and sync seamlessly with intervals.icu for up-to-the-minute insights into activities, events, and performance metrics.

**Highlights:** Detailed activity and event visualization, Interactive performance graphs, Seamless intervals.icu sync, Customizable data analysis, Actionable training insights

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $3.99 | one-time |
| Lunch | $11.99 | one-time |
| Big Thanks | $17.99 | one-time |
| Sponsor | $44.99 | one-time |


### SOLLO

[App page](https://appshunter.io/ios/app/sollo/id6756432973)

**In-app purchases:** none


## Frequently asked questions

### Is Subintervals free?

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

### Is SOLLO free?

SOLLO is free to download, with no in-app purchases.

### Do Subintervals or SOLLO have ads?

Neither Subintervals nor SOLLO shows ads.

### Which is updated more often, Subintervals or SOLLO?

Subintervals ships an update weekly, and SOLLO every 3 weeks. Most recently, Subintervals was updated on September 29, 2026 and SOLLO on October 7, 2026.

---

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