# Time Lock vs SyncFlowBoard

The clearest difference is price: SyncFlowBoard at Free against Time Lock's $0.99. SyncFlowBoard also leads on in-app purchases (none vs 1) and update cadence (every 3 days vs every 10 months). Time Lock's advantage is iOS requirement (11.0 vs 17.6). On ads and device support there is nothing between them.

SyncFlowBoard is free to download; Time Lock costs $0.99 up front. Time Lock sells 1 one-off in-app purchase. SyncFlowBoard asks for nothing beyond the download.

Time Lock ships an update every 10 months, SyncFlowBoard every 3 days. The most recent releases landed on September 26, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Time Lock | SyncFlowBoard |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.8 (12 ratings)](https://appshunter.io/ios/app/time-lock-a-message-in-time/id1152048374/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 26 MB | 5 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fanatic Development](https://appshunter.io/developer/488507501) | [SUGAR SOUND, K.K.](https://appshunter.io/developer/1811951231) |

## What reviewers say

### Time Lock

[App page](https://appshunter.io/ios/app/time-lock-a-message-in-time/id1152048374)

Send messages that reveal themselves only at a specific time or for a limited duration. Enhance conversations with timed secrets or exclusive meeting details. It's a fun way to build anticipation and curiosity.

**Highlights:** Send timed messages, Set message visibility duration, Share secrets, Exclusive meeting details, iMessage integration, Send message reminders

**Features:** iMessage stickers

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Messages | Free | one-time |


### SyncFlowBoard

[App page](https://appshunter.io/ios/app/syncflowboard/id6745395365)

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

**In-app purchases:** none


## Frequently asked questions

### Is Time Lock free?

Time Lock costs $0.99, and also offers in-app purchases.

### Is SyncFlowBoard free?

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

### Do Time Lock or SyncFlowBoard have ads?

Neither Time Lock nor SyncFlowBoard shows ads.

### Which is updated more often, Time Lock or SyncFlowBoard?

Time Lock ships an update every 10 months, and SyncFlowBoard every 3 days. Most recently, Time Lock was updated on September 26, 2026 and SyncFlowBoard on September 23, 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.*