# SinalFlag vs Krivo

The clearest difference is update cadence: Krivo at every 3 days against SinalFlag's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SinalFlag sells 2 in-app purchases, starting at $4.99 per month and Krivo sells 4 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

SinalFlag ships an update every 9 days, Krivo every 3 days. The most recent releases landed on October 29, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | SinalFlag | Krivo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/krivo-couples-app/id6812831502/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 56 MB | 53 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Danrley Alves dos Santos](https://appshunter.io/developer/6809481135) | [MOLVERINE CORP](https://appshunter.io/developer/6791785718) |

## What reviewers say

### SinalFlag

[App page](https://appshunter.io/ios/app/sinalflag/id6809481133)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Mensal | $4.99 | per month |
| Premium Anual | $29.99 | per year |


### Krivo

[App page](https://appshunter.io/ios/app/krivo-couples-app/id6812831502)

This app provides a shared digital space for couples to organize plans, tasks, memories, and important information. It offers features like collaborative drawing, a shared calendar, decision-making tools, and secure document storage.

**Highlights:** Shared drawing canvas, Collaborative calendar, Task and list management, Daily couple questions, Decision-making tools, Secure document vault, Menstrual cycle log

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly | $5.99 | per month |
| Premium 6 months | $14.99 | per 6 months |
| Premium yearly | $24.99 | per year |
| Premium forever | $49.99 | one-time |


## Frequently asked questions

### Is SinalFlag free?

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

### Is Krivo free?

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

### Do SinalFlag or Krivo have ads?

Neither SinalFlag nor Krivo shows ads.

### Which is updated more often, SinalFlag or Krivo?

SinalFlag ships an update every 9 days, and Krivo every 3 days. Most recently, SinalFlag was updated on October 29, 2026 and Krivo on November 6, 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.*