# SIUI PIE vs PsychChart

The clearest difference is price: PsychChart at Free against SIUI PIE's $19.99. PsychChart also leads on update cadence (every 5 weeks vs every 19 months). SIUI PIE's advantage is in-app purchases (none vs 6) and iOS requirement (9.0 vs 14.0). On ads and device support there is nothing between them.

PsychChart is free to download; SIUI PIE costs $19.99 up front. PsychChart sells 6 one-off in-app purchases. SIUI PIE asks for nothing beyond the download.

SIUI PIE ships an update every 19 months, PsychChart every 5 weeks. The most recent releases landed on May 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SIUI PIE | PsychChart |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/psychchart/id1019568840/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 5 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 30 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPad | iPad |
| Age rating | 17+ | 12+ |
| Developer | [Shantou Institute of Ultrasonic Inst. Co., Ltd.](https://appshunter.io/developer/406261738) | [Tech For Tomorrow, Inc.](https://appshunter.io/developer/1017192426) |

## What reviewers say

### SIUI PIE

[App page](https://appshunter.io/ios/app/siui-pie-3-hd/id434350466)

**Features:** macOS Compatibility

**In-app purchases:** none


### PsychChart

[App page](https://appshunter.io/ios/app/psychchart/id1019568840)

Streamline client charting for mental health professionals with this HIPAA-compliant iPad app. Manage client files, diagnoses, documents, and billing securely. Offers encrypted backups and biometric access.

**Highlights:** HIPAA-compliant client charting, DSM-V (ICD-10) diagnosis coding, Secure client record storage, Encrypted PDF report generation, Insurance billing interaction, Biometric access support

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2023 Diagnosis coding by CMS | $4.99 | one-time |
| 2024 Diagnosis coding by CMS | $4.99 | one-time |
| 2025 Diagnosis coding by CMS | $4.99 | one-time |
| Data archiver feature | $9.99 | one-time |
| Unlimited Clients Upgrade | $29.99 | one-time |
| Unlimited client upgrade | $29.99 | one-time |


## Frequently asked questions

### Is SIUI PIE free?

SIUI PIE costs $19.99, with no in-app purchases.

### Is PsychChart free?

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

### Do SIUI PIE or PsychChart have ads?

Neither SIUI PIE nor PsychChart shows ads.

### Which is updated more often, SIUI PIE or PsychChart?

SIUI PIE ships an update every 19 months, and PsychChart every 5 weeks. Most recently, SIUI PIE was updated on May 15, 2026 and PsychChart on October 12, 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.*