# IsTalk vs Posti

The clearest difference is ads: Posti at none against IsTalk's shown. IsTalk's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.6). On price and in-app purchases there is nothing between them.

Both are free to download. IsTalk sells 9 in-app purchases, starting at $1.99 per 7 days and Posti sells 1 in-app purchase, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | IsTalk | Posti |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/istalk-talk-analysis/id1555905116/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 49.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 147 MB | 2 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [REALBIND .inc](https://appshunter.io/developer/1555905118) | [SeongHak Song](https://appshunter.io/developer/6784156703) |

## What reviewers say

### IsTalk

[App page](https://appshunter.io/ios/app/istalk-talk-analysis/id1555905116)

Analyze your LINE chat history to understand your communication patterns and compatibility with others. Discover insights into your conversations, including frequently used phrases, chat times, and relationship dynamics, all processed securely offline.

**Highlights:** LINE chat analysis, Compatibility diagnosis, Offline processing, AI relationship mapping, Habit and behavior insights, Time-series trend analysis, Group chat analysis

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan Weekly | $1.99 | per 7 days |
| Premium Plan Monthly | $2.99 | per month |
| Premium Plan Annual | $22.99 | per year |
| 広告の非表示+追加コンテンツ開放 | Free | one-time |
| S- Ticket（10 set） | $1.99 | one-time |
| S- Ticket（20 set） | $2.99 | one-time |
| S- Ticket（30 set） | $3.99 | one-time |
| S- Ticket（50 set） | $6.99 | one-time |
| S- Ticket（100 set） | $11.99 | one-time |

**What reviewers like**

- ✨ Detailed analysis
- 🤩 Fun and interesting
- 🚀 Quick results
- 👍 Easy LINE integration
- 💖 Free premium features (ads)

**What reviewers complain about**

- 📉 Inaccurate data counts
- 🐌 App performance issues
- 🔋 Phone gets hot/slow
- ❌ Limited analysis period
- 🪲 Crashes frequently

**Reported bugs**

- AI accuracy issues (message sender identification)
- Incorrect call counts
- Incorrect message counts (e.g., 'w' count)
- Incorrect 'love word' classification
- App crashes when analyzing large files

**Requested features**

- Enable Instagram DM analysis
- Allow viewing all past LINE messages
- Improve accuracy of message/call counts
- Expand analysis period
- Add dark mode


### Posti

[App page](https://appshunter.io/ios/app/posti-package-tracker/id6804367258)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Posti Pro | $0.49 | per month |


## Frequently asked questions

### Is IsTalk free?

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

### Is Posti free?

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

### Do IsTalk or Posti have ads?

IsTalk shows ads; Posti does not.

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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.*