# IsTalk vs SoloWatermark

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

Both are free to download. IsTalk sells 9 in-app purchases, starting at $1.99 per 7 days and SoloWatermark sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

IsTalk ships an update every 3 days, SoloWatermark weekly. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | IsTalk | SoloWatermark |
| --- | --- | --- |
| 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** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 134 MB | 74 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [REALBIND .inc](https://appshunter.io/developer/1555905118) | [JUNICHI HASHIMOTO](https://appshunter.io/developer/1609225560) |

## What reviewers say

### IsTalk

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

Analyze LINE chat content privately to understand your communication patterns and compatibility with others. Discover insights into chat frequency, common phrases, and communication times. Offers detailed compatibility assessments and relationship mapping.

**Highlights:** LINE chat content analysis, Compatibility diagnosis, Offline analysis processing, AI Relationship Mapping, Habit and behavior screens, Time-series chat trends, Group LINE 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


### SoloWatermark

[App page](https://appshunter.io/ios/app/solowatermark/id6788365371)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership | $1.99 | per month |
| Premium Plan 1 Year | $11.99 | per year |


## Frequently asked questions

### Is IsTalk free?

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

### Is SoloWatermark free?

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

### Do IsTalk or SoloWatermark have ads?

IsTalk shows ads; SoloWatermark does not.

### Which is updated more often, IsTalk or SoloWatermark?

IsTalk ships an update every 3 days, and SoloWatermark weekly. Most recently, IsTalk was updated on November 7, 2026 and SoloWatermark on November 5, 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.*