# Opty Slip vs Nudge Feedback

The clearest difference is update cadence: Nudge Feedback at every 2 days against Opty Slip's every 2 months. 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.

Opty Slip ships an update every 2 months, Nudge Feedback every 2 days. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Opty Slip | Nudge Feedback |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/opty-slip/id6762633001/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 40 MB | 91 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Shamoon](https://appshunter.io/developer/1894900280) | [Nudge Technologies LLC](https://appshunter.io/developer/6790440047) |

## What reviewers say

### Opty Slip

[App page](https://appshunter.io/ios/app/opty-slip/id6762633001)

Manage your optical shop digitally with this all-in-one database system. Track customer records, generate professional invoices, manage orders, and monitor sales and revenue from your mobile device.

**Highlights:** Customer record management, Digital slip generation, Order tracking, Sales and revenue tracking, Prescription history storage, Instant customer search

**Features:** macOS Compatibility

**In-app purchases:** none


### Nudge Feedback

[App page](https://appshunter.io/ios/app/nudge-feedback/id6790440045)

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

**In-app purchases:** none


## Frequently asked questions

### Is Opty Slip free?

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

### Is Nudge Feedback free?

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

### Do Opty Slip or Nudge Feedback have ads?

Neither Opty Slip nor Nudge Feedback shows ads.

### Which is updated more often, Opty Slip or Nudge Feedback?

Opty Slip ships an update every 2 months, and Nudge Feedback every 2 days. Most recently, Opty Slip was updated on October 31, 2026 and Nudge Feedback on November 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*