# nSuns 5/3/1 vs HIIT & Tabata Interval Timer

The clearest difference is in-app purchases: HIIT & Tabata Interval Timer at none against nSuns 5/3/1's 6. HIIT & Tabata Interval Timer also leads on update cadence (every 3 days vs every 9 days) and iOS requirement (15.0 vs 17.0). nSuns 5/3/1's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. nSuns 5/3/1 sells 6 one-off in-app purchases. HIIT & Tabata Interval Timer asks for nothing beyond the download.

nSuns 5/3/1 ships an update every 9 days, HIIT & Tabata Interval Timer every 3 days. The most recent releases landed on October 22, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | nSuns 5/3/1 | HIIT & Tabata Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (4.9K ratings)](https://appshunter.io/ios/app/nsuns-531/id1265494052/reviews)** | — |
| Number of ratings | **4.9K** | — |
| Positive reviews | 96.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 29 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Jonas Reichert](https://appshunter.io/developer/991237310) | [Toril Lia](https://appshunter.io/developer/6799709405) |

## What reviewers say

### nSuns 5/3/1

[App page](https://appshunter.io/ios/app/nsuns-531/id1265494052)

This app is a dedicated companion for the nSuns 5/3/1 strength training program. It allows users to log lifts, track progress, and automatically calculates weight progression based on training max and AMRAP results. Customizable features and progress charts help users optimize their workouts.

**Highlights:** Log lifts and track progress, Automatic weight progression, AMRAP-driven programming, Customizable accessory exercises, Rest timer with Apple Watch support, Progress charts for main lifts, iCloud sync

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Beer | $0.99 | one-time |
| Coffee | $1.99 | one-time |
| Protein Brownie | $2.99 | one-time |
| Protein Shake | $3.99 | one-time |
| Gym Weekly Fee | $4.99 | one-time |
| Supporter | $8.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Helps track progress
- 🚀 Seamless workout tracking
- 👍 Customizable templates
- 🚀 Automatic weight calculations

**What reviewers complain about**

- 🐛 Occasional bugs or glitches
- 💡 Lack of ability to change workout days
- 💡 Limited accessory exercise customization
- 💡 No option to carry over accessory exercises
- 💡 No plate calculator or weight breakdown

**Reported bugs**

- Workout template not updating correctly
- Timer issues or disappearing on app switch
- Inconsistencies with training max updates

**Requested features**

- Ability to customize workout days
- Option to add and track custom accessory exercises
- Carry over accessory exercises to next cycle
- Plate calculator or weight breakdown feature
- Notes section for each workout


### HIIT & Tabata Interval Timer

[App page](https://appshunter.io/ios/app/hiit-and-tabata-interval-timer/id6799709403)

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

**In-app purchases:** none


## Frequently asked questions

### Is nSuns 5/3/1 free?

nSuns 5/3/1 is free to download, with in-app purchases available.

### Is HIIT & Tabata Interval Timer free?

HIIT & Tabata Interval Timer is free to download, with no in-app purchases.

### Do nSuns 5/3/1 or HIIT & Tabata Interval Timer have ads?

HIIT & Tabata Interval Timer shows ads; nSuns 5/3/1 does not.

### Which is updated more often, nSuns 5/3/1 or HIIT & Tabata Interval Timer?

nSuns 5/3/1 ships an update every 9 days, and HIIT & Tabata Interval Timer every 3 days. Most recently, nSuns 5/3/1 was updated on October 22, 2026 and HIIT & Tabata Interval Timer on October 19, 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.*