# Custom Fitness Timer vs VoltTimer

The clearest difference is in-app purchases: Custom Fitness Timer at none against VoltTimer's 1. Custom Fitness Timer also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (13.0 vs 18.6). VoltTimer's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. VoltTimer sells 1 one-off in-app purchase. Custom Fitness Timer asks for nothing beyond the download.

Custom Fitness Timer ships an update every 4 days, VoltTimer every 3 weeks. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Custom Fitness Timer | VoltTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/custom-fitness-timer/id6448923014/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Ad-supported | — |
| Size | 15 MB | 6 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jared Rosenthal](https://appshunter.io/developer/1686932132) | [CherneyWerk LLC](https://appshunter.io/developer/1887149773) |

## What reviewers say

### Custom Fitness Timer

[App page](https://appshunter.io/ios/app/custom-fitness-timer/id6448923014)

Create and manage custom timers for various fitness activities like countdowns, intervals, and work/rest periods. Features include intuitive navigation, a press-and-hold stopwatch, and optional sound alerts. Personalize timers with custom names and colors to match different phases.

**Highlights:** Unlimited custom timer creation, Countdown timer, Interval timer, Work/Rest timer, Press and hold stopwatch, Optional timer sounds, Color-coded timer phases

**In-app purchases:** none


### VoltTimer

[App page](https://appshunter.io/ios/app/volttimer-workout-timer/id6760988281)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VoltTimer Pro | $3.99 | one-time |


## Frequently asked questions

### Is Custom Fitness Timer free?

Custom Fitness Timer is free to download, with no in-app purchases.

### Is VoltTimer free?

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

### Do Custom Fitness Timer or VoltTimer have ads?

Custom Fitness Timer shows ads; VoltTimer does not.

### Which is updated more often, Custom Fitness Timer or VoltTimer?

Custom Fitness Timer ships an update every 4 days, and VoltTimer every 3 weeks. Most recently, Custom Fitness Timer was updated on September 29, 2026 and VoltTimer on October 7, 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.*