# Interval Timer vs FlexSet

The clearest difference is ads: FlexSet at none against Interval Timer's shown. FlexSet also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Interval Timer sells 8 in-app purchases, starting at $3.99 per month and FlexSet sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Interval Timer ships an update fortnightly, FlexSet every 10 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Interval Timer | FlexSet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (297 ratings)](https://appshunter.io/ios/app/interval-timer-purehiit/id1198752738/reviews)** | — |
| Number of ratings | **297** | — |
| Positive reviews | 73.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 129 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Miklos Pavel](https://appshunter.io/developer/979923367) | [Florian Lauka](https://appshunter.io/developer/6789207743) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-purehiit/id1198752738)

This app provides a simple and customizable timer for interval training like HIIT, Tabata, and EMOM. It offers audio cues, background operation, and integrates with Apple Watch for health tracking. Pre-built routines and workout reminders help users stay consistent with their fitness goals.

**Highlights:** Customizable interval timer, Audio alerts for rounds, Background operation, Apple Watch integration, Workout reminders, Pre-built routines

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $19.99 | per year |
| Premium features | Free | one-time |
| Remove Ads | $1.99 | one-time |
| Custom sounds | $1.99 | one-time |
| Premium features | $4.99 | one-time |
| Premium features | $9.99 | one-time |
| Premium features | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Great timer functionality
- 👍 Can program intervals (warmup, activity, rest, cool down)
- 👍 Supports many rounds (up to 100)
- 👍 Ability to save workouts

**What reviewers complain about**

- 💰 App became paid unexpectedly
- 💰 Premium required to start timer
- 💡 Round cap limits functionality for high rep activities
- 💡 Needs more than 30 intervals for some routines (e.g., stretching)
- 💡 Lacks a background click feature (e.g., every second)

**Reported bugs**

- Advertisements still present after paying for removal
- App requires premium to start timer (recent change)

**Requested features**

- Remove the cap on rounds
- Add a background click feature (e.g., every second)
- More sound options
- Option for more than one workout
- Add a halfway beep


### FlexSet

[App page](https://appshunter.io/ios/app/flexset-gym-workout-tracker/id6789207741)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlexSet Premium Monthly | $9.99 | per month |
| FlexSet Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is Interval Timer free?

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

### Is FlexSet free?

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

### Do Interval Timer or FlexSet have ads?

Interval Timer shows ads; FlexSet does not.

### Which is updated more often, Interval Timer or FlexSet?

Interval Timer ships an update fortnightly, and FlexSet every 10 days. Most recently, Interval Timer was updated on October 24, 2026 and FlexSet on October 18, 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.*