# SparkFast vs Intermit

The clearest difference is update cadence: SparkFast at every 4 days against Intermit's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SparkFast sells 6 in-app purchases, starting at $6.99 per month and Intermit sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SparkFast ships an update every 4 days, Intermit monthly. The most recent releases landed on September 17, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | SparkFast | Intermit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Monthly |
| Size | 95 MB | 33 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SparkFast Technologies LLC](https://appshunter.io/developer/1852736867) | [Sara El Harkaoui](https://appshunter.io/developer/1832300185) |

## What reviewers say

### SparkFast

[App page](https://appshunter.io/ios/app/sparkfast/id6755233574)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SparkFast Monthly | $6.99 | per month |
| SparkFast Annual | $48.00 | per year |
| SparkFast Annual | $51.00 | per year |
| SparkFast Annual | $54.00 | per year |
| SparkFast Annual | $57.00 | per year |
| SparkFast Yearly | $64.99 | per year |


### Intermit

[App page](https://appshunter.io/ios/app/intermit-fasting-timer/id6758806511)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $4.99 | one-time |


## Frequently asked questions

### Is SparkFast free?

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

### Is Intermit free?

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

### Do SparkFast or Intermit have ads?

Neither SparkFast nor Intermit shows ads.

### Which is updated more often, SparkFast or Intermit?

SparkFast ships an update every 4 days, and Intermit monthly. Most recently, SparkFast was updated on September 17, 2026 and Intermit on September 13, 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.*