# EIIB vs SendLynx

The clearest difference is update cadence: SendLynx at every 3 days against EIIB's monthly. EIIB's advantage is device support (3 vs 1) and ratings volume (3 vs 1). On price, rating, 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.

On the App Store both sit at effectively the same score — 5.0 for EIIB against 5.0 for SendLynx. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

EIIB ships an update monthly, SendLynx every 3 days. The most recent releases landed on September 27, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | EIIB | SendLynx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/eiib/id1540797519/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sendlynx/id6782413356/reviews) |
| Number of ratings | **3** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free | Free |
| Size | 71 MB | 31 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [EIIB Corp](https://appshunter.io/developer/1540797521) | [Austin Lutz](https://appshunter.io/developer/1884796552) |

## What reviewers say

### EIIB

[App page](https://appshunter.io/ios/app/eiib/id1540797519)

This app helps entrepreneurs manage their business operations by scheduling services, setting prices, and defining VIP hours for client bookings. It also provides financial guidance to increase profitability and customer retention.

**Highlights:** Schedule hours of operation, Manage service offerings and pricing, Set VIP hours for clients, Financial solutions for profitability, Customer retention strategies, Investment opportunity building

**Features:** Apple Wallet

**In-app purchases:** none


### SendLynx

[App page](https://appshunter.io/ios/app/sendlynx/id6782413356)

Easily book appointments with local service providers and manage your schedule. Business owners can streamline operations, manage clients, and process payments directly through the app.

**Highlights:** Book appointments instantly, Reschedule or cancel bookings, Rebook past visits with one tap, Passwordless sign-in, Manage calendar and bookings, Process payments securely, Manage services and staff

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

**In-app purchases:** none


## Frequently asked questions

### Is EIIB free?

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

### Is SendLynx free?

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

### Which has better reviews, EIIB or SendLynx?

EIIB and SendLynx are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do EIIB or SendLynx have ads?

Neither EIIB nor SendLynx shows ads.

### Which is updated more often, EIIB or SendLynx?

EIIB ships an update monthly, and SendLynx every 3 days. Most recently, EIIB was updated on September 27, 2026 and SendLynx 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.*