# Whendy Fast Time Planner vs SSSS Mobile

The clearest difference is in-app purchases: SSSS Mobile at none against Whendy Fast Time Planner's 1. SSSS Mobile also leads on update cadence (every 8 days vs every 3 weeks) and iOS requirement (13.0 vs 17.0). Whendy Fast Time Planner's advantage is ratings volume (12 vs 2). On price, rating, ads and device support there is nothing between them.

Both are free to download. Whendy Fast Time Planner sells 1 one-off in-app purchase. SSSS Mobile asks for nothing beyond the download.

SSSS Mobile holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Whendy Fast Time Planner has 12 ratings behind it against 2, so its average is the more settled of the two.

Whendy Fast Time Planner ships an update every 3 weeks, SSSS Mobile every 8 days. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Whendy Fast Time Planner | SSSS Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (12 ratings)](https://appshunter.io/ios/app/whendy-fast-time-planner/id1455777940/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ssss-mobile/id1505136665/reviews)** |
| Number of ratings | **12** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Freemium | **Free** |
| Size | 3 MB | 9 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hannes Oud](https://appshunter.io/developer/956310490) | [Dustin Runnells](https://appshunter.io/developer/975358305) |

## What reviewers say

### Whendy Fast Time Planner

[App page](https://appshunter.io/ios/app/whendy-fast-time-planner/id1455777940)

This app helps you avoid being late by calculating when to start each task for an event. Simply input your target completion time and the duration of each step, and it will provide a clear schedule.

**Highlights:** Calculate start times backwards from a target time, Input task durations, View start and end times for each step, Import events from calendar (Premium), Export activities to calendar (Premium), Share plans as formatted text

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | one-time |


### SSSS Mobile

[App page](https://appshunter.io/ios/app/ssss-mobile/id1505136665)

This app implements Shamir's Secret Sharing Scheme, allowing you to split text secrets into multiple shares. These shares can be reconstructed when a specific threshold is met, and can be shared via QR codes or text.

**Highlights:** Split secrets into multiple shares, Reconstruct secrets with a threshold, Share shares via QR code, Share shares via text, Retrieve shares from QR code, Retrieve shares from NFC Tag

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Whendy Fast Time Planner free?

Whendy Fast Time Planner is free to download, with in-app purchases available.

### Is SSSS Mobile free?

SSSS Mobile is free to download, with no in-app purchases.

### Which has better reviews, Whendy Fast Time Planner or SSSS Mobile?

SSSS Mobile is rated higher. Whendy Fast Time Planner averages 4.8 out of 5 from 12 ratings, while SSSS Mobile averages 5.0 from 2 ratings.

### Do Whendy Fast Time Planner or SSSS Mobile have ads?

Neither Whendy Fast Time Planner nor SSSS Mobile shows ads.

### Which is updated more often, Whendy Fast Time Planner or SSSS Mobile?

Whendy Fast Time Planner ships an update every 3 weeks, and SSSS Mobile every 8 days. Most recently, Whendy Fast Time Planner was updated on November 2, 2026 and SSSS Mobile on November 4, 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.*