# Stack Influence vs Letterss

The clearest difference is update cadence: Letterss at weekly against Stack Influence's monthly. Stack Influence's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.5). On price, ads and in-app purchases there is nothing between them.

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

Stack Influence ships an update monthly, Letterss weekly. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Stack Influence | Letterss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (397 ratings)](https://appshunter.io/ios/app/stack-influence-creator-deals/id6481402069/reviews)** | — |
| Number of ratings | **397** | — |
| Positive reviews | 78.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free | — |
| Size | 43 MB | 8 MB |
| Requires iOS | **15.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Stack Influence](https://appshunter.io/developer/1739639888) | [Betitup Gaming, Inc](https://appshunter.io/developer/1569527393) |

## What reviewers say

### Stack Influence

[App page](https://appshunter.io/ios/app/stack-influence-creator-deals/id6481402069)

Connect with brands for free products and cash back by sharing on social media. This platform offers instant approvals for creators with over 100 followers and provides opportunities for long-term brand partnerships.

**Highlights:** Freebies and cash back deals, Affiliate and brand ambassador opportunities, Instant approval with 100+ followers, Effortless posting and automatic payouts, Instant matchmaking with relevant brands, Build long-term brand relationships

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 User-friendly interface
- 💰 Opportunity to earn rewards
- 🎁 Wide variety of products to try
- 🤝 Helpful for creators/influencers

**What reviewers complain about**

- 🔍 Lack of communication/support
- ❌ Sudden loss of campaigns/opportunities
- 💰 Requires initial product purchase
- 🤔 Unclear qualification criteria

**Reported bugs**

- Issues with verification code delivery
- Inconsistent campaign availability

**Requested features**

- Expand to TikTok platform
- Offer paid content opportunities
- Improve campaign selection and availability


### Letterss

[App page](https://appshunter.io/ios/app/letterss/id6761157368)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stack Influence free?

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

### Is Letterss free?

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

### Do Stack Influence or Letterss have ads?

Neither Stack Influence nor Letterss shows ads.

### Which is updated more often, Stack Influence or Letterss?

Stack Influence ships an update monthly, and Letterss weekly. Most recently, Stack Influence was updated on October 19, 2026 and Letterss on October 8, 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.*