# LotDate vs Check In | Relationship Alerts

The clearest difference is iOS requirement: Check In | Relationship Alerts at 15.1 against LotDate's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. LotDate sells 3 in-app purchases, starting at $2.99 per month and Check In | Relationship Alerts sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

LotDate ships an update every 4 days, Check In | Relationship Alerts weekly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | LotDate | Check In | Relationship Alerts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (325 ratings)](https://appshunter.io/ios/app/lotdate-batch-code-checker/id1158056006/reviews)** | — |
| Number of ratings | **325** | — |
| Positive reviews | 46.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 41 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [占辉 百](https://appshunter.io/developer/1081455103) | [Kierre Willoughby](https://appshunter.io/developer/1874179069) |

## What reviewers say

### LotDate

[App page](https://appshunter.io/ios/app/lotdate-batch-code-checker/id1158056006)

Instantly decode cosmetic batch codes to find out when your products were made and their estimated expiry dates. Supports over 2000 brands with an AI-powered engine and saves your decoding history.

**Highlights:** Decode batch codes instantly, Supports 2000+ cosmetic brands, AI-powered decoding engine, Check product freshness and expiry, Saves decoding history, Optional Pro subscription for unlimited queries

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Membership | $2.99 | per month |
| Yearly Premium Membership | $9.99 | per year |
| Lifetime Premium | $17.99 | one-time |


### Check In | Relationship Alerts

[App page](https://appshunter.io/ios/app/check-in-relationship-alerts/id6758647378)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Check In Pro | $6.99 | one-time |


## Frequently asked questions

### Is LotDate free?

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

### Is Check In | Relationship Alerts free?

Check In | Relationship Alerts is free to download, with in-app purchases available.

### Do LotDate or Check In | Relationship Alerts have ads?

Neither LotDate nor Check In | Relationship Alerts shows ads.

### Which is updated more often, LotDate or Check In | Relationship Alerts?

LotDate ships an update every 4 days, and Check In | Relationship Alerts weekly. Most recently, LotDate was updated on November 2, 2026 and Check In | Relationship Alerts on October 31, 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.*