# Rello vs Training Stack

The clearest difference is update cadence: Rello at monthly against Training Stack's every 3 months. Rello also leads on iOS requirement (17.6 vs 26.2). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Rello sells 2 in-app purchases, starting at $2.99 per month and Training Stack sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Rello against 5.0 for Training Stack. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Rello ships an update monthly, Training Stack every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Rello | Training Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/rello-sleep-vitals-activity/id6480137239/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/training-stack/id6757607761/reviews) |
| Number of ratings | 3 | **6** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Freemium | Freemium |
| Size | 1 MB | 26 MB |
| Requires iOS | **17.6** | 26.2 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Sam Malapas](https://appshunter.io/developer/1738326099) | [Raven Howard](https://appshunter.io/developer/1867818110) |

## What reviewers say

### Rello

[App page](https://appshunter.io/ios/app/rello-sleep-vitals-activity/id6480137239)

Track your sleep, vitals, and activity to understand how they impact your well-being. Identify personal trends and build healthier habits for a longer, more vibrant life. All your health data remains private and on your device.

**Highlights:** Sleep tracking and analysis, Vitals monitoring, Activity and workout tracking, Personalized trend identification, On-device data privacy, Goal achievement monitoring

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription (Monthly) | $2.99 | per month |
| Subscription (Yearly) | $24.99 | per year |


### Training Stack

[App page](https://appshunter.io/ios/app/training-stack/id6757607761)

This app consolidates running, strength training, and short exercise bursts into a single platform. It allows users to import training plans, track progress with detailed analytics, and integrate with health data. Personalize your fitness journey with customizable plans and shareable progress reports.

**Highlights:** Import running and strength training plans, Track running, strength, and exercise snacks, Apple Health integration for automatic syncing, Detailed running and strength analytics, Customizable strength training with 400+ exercises, Widgets and Live Activities for quick access, Weather integration for optimized runs

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Stacker - Monthly | $4.99 | per month |
| Pro Stacker - Annual | $19.99 | per year |
| Pro Stacker - Believer | $99.99 | one-time |


## Frequently asked questions

### Is Rello free?

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

### Is Training Stack free?

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

### Which has better reviews, Rello or Training Stack?

Rello and Training Stack are both rated 5.0 out of 5 on the App Store, from 3 and 6 ratings respectively.

### Do Rello or Training Stack have ads?

Neither Rello nor Training Stack shows ads.

### Which is updated more often, Rello or Training Stack?

Rello ships an update monthly, and Training Stack every 3 months. Most recently, Rello was updated on October 24, 2026 and Training Stack on October 24, 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.*