# ADDR vs NotiSync

The clearest difference is in-app purchases: NotiSync at none against ADDR's 1. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ADDR sells 1 one-off in-app purchase. NotiSync asks for nothing beyond the download.

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

## The numbers

| Metric | ADDR | NotiSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/addr-addition-taken-seriously/id6775256734/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/notisync/id6784461695/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 20 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Joshua Caleb Green](https://appshunter.io/developer/1887583729) | [Dingwen Wang](https://appshunter.io/developer/6784461697) |

## What reviewers say

### ADDR

[App page](https://appshunter.io/ios/app/addr-addition-taken-seriously/id6775256734)

This app humorously treats simple addition like a high-stakes enterprise operation. It features a detailed, multi-stage processing pipeline for every sum, offering commentary and leaderboards. Users can track progress, earn achievements, and share their additions with a community.

**Highlights:** Humorous 8-stage addition pipeline, AI-powered number commentary, Leaderboards and daily challenges, Streaks and achievement system, Community sharing and likes, Siri integration, Lock screen and widget support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ADDR Pro | $3.99 | one-time |


### NotiSync

[App page](https://appshunter.io/ios/app/notisync/id6784461695)

Seamlessly mirror notifications from your other devices to your iPhone with end-to-end encryption. Receive native iOS alerts for messages, emails, and app updates, with options to customize what gets synced and when. It ensures your notification content remains private during transit.

**Highlights:** End-to-end encrypted notification mirroring, Native iOS notification rendering, Synced dismissals across devices, Per-device and per-app controls, Private asset handling for attachments, QR code and pairing-link setup

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ADDR free?

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

### Is NotiSync free?

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

### Which has better reviews, ADDR or NotiSync?

ADDR and NotiSync are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ADDR or NotiSync have ads?

Neither ADDR nor NotiSync shows ads.

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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.*