# Notiffy vs ByWhen

The clearest difference is device support: Notiffy at 3 against ByWhen's 1. Notiffy also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Notiffy | ByWhen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 65 MB | 11 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [APOSTOLOS TSEMPELIS](https://appshunter.io/developer/1863145564) | [NiONlite LLC](https://appshunter.io/developer/1891899842) |

## What reviewers say

### Notiffy

[App page](https://appshunter.io/ios/app/notiffy/id6756832771)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Notiffy Premium – Monthly | $2.99 | per month |
| Notiffy Premium – 6 Months | $12.95 | per 6 months |
| Notiffy Premium – Yearly | $24.99 | per year |


### ByWhen

[App page](https://appshunter.io/ios/app/bywhen-deadline-task-planner/id6778767584)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Annual Premium | $39.99 | per year |
| Lifetime Premium | $79.99 | one-time |


## Frequently asked questions

### Is Notiffy free?

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

### Is ByWhen free?

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

### Do Notiffy or ByWhen have ads?

Neither Notiffy nor ByWhen shows ads.

### Which is updated more often, Notiffy or ByWhen?

Notiffy ships an update weekly, and ByWhen weekly. Most recently, Notiffy was updated on October 30, 2026 and ByWhen on November 10, 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.*