# Lettor vs Effecti

The clearest difference is update cadence: Effecti at fortnightly against Lettor's every 13 months. Lettor's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Lettor ships an update every 13 months, Effecti fortnightly. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Lettor | Effecti |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 38 MB | 43 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Amanda Tonial](https://appshunter.io/developer/1550819745) | [Effecti Tecnologia em Licitação](https://appshunter.io/developer/1202248978) |

## What reviewers say

### Lettor

[App page](https://appshunter.io/ios/app/lettor/id1550819743)

**Features:** macOS Compatibility

**In-app purchases:** none


### Effecti

[App page](https://appshunter.io/ios/app/effecti/id1565590038)

This app monitors electronic bidding chats for your company and sends alerts for new invitations. Access all your bidding information from anywhere, right on your mobile device.

**Highlights:** Monitor electronic bidding chats, Receive invitation alerts, Access from anywhere, Mobile bidding management, Company bid tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Lettor free?

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

### Is Effecti free?

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

### Do Lettor or Effecti have ads?

Neither Lettor nor Effecti shows ads.

### Which is updated more often, Lettor or Effecti?

Lettor ships an update every 13 months, and Effecti fortnightly. Most recently, Lettor was updated on October 2, 2026 and Effecti on October 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.*