# Delphi Pro vs TechStack by JSP

The clearest difference is price: TechStack by JSP at Free against Delphi Pro's $0.99. TechStack by JSP also leads on update cadence (daily vs every 2 weeks) and iOS requirement (14.0.0 vs 16.0). Delphi Pro's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

TechStack by JSP is free to download; Delphi Pro costs $0.99 up front. Delphi Pro sells 5 in-app purchases, starting at $7.99 per month and TechStack by JSP sells 9 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Delphi Pro ships an update every 2 weeks, TechStack by JSP daily. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Delphi Pro | TechStack by JSP |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/delphi-pro/id6447233487/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 80 MB |
| Requires iOS | 16.0 | **14.0.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Moritz Mahler](https://appshunter.io/developer/918599588) | [Daryl Marcano](https://appshunter.io/developer/1688013135) |

## What reviewers say

### Delphi Pro

[App page](https://appshunter.io/ios/app/delphi-pro/id6447233487)

Access advanced AI capabilities on your mobile device for instant answers and creative image generation. This tool is designed to assist with a wide range of queries and creative tasks, making AI accessible anytime.

**Highlights:** AI-powered chat assistance, Image generation capabilities, Answers to user queries, Mobile accessibility, Creative tool

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Delphi-Premium | $7.99 | per month |
| 20k Token | $0.99 | one-time |
| 50k Token | $1.99 | one-time |
| 100k Token | $2.99 | one-time |
| 300k Token | $4.99 | one-time |


### TechStack by JSP

[App page](https://appshunter.io/ios/app/techstack-by-jsp/id6739455072)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TechStack (United States) | $9.99 | per month |
| TechStack (United States) | $24.99 | per 3 months |
| TechStack (United States) | $44.99 | per 6 months |
| TechStack (United States) | $49.99 | per 3 months |
| TechStack (United States) | $74.99 | per year |
| TechStack (United States) | $89.99 | per 6 months |
| TechStack (United States) | $124.99 | per 3 months |
| TechStack (United States) | $239.99 | per 6 months |
| TechStack (United States) | $449.99 | per year |


## Frequently asked questions

### Is Delphi Pro free?

Delphi Pro costs $0.99, and also offers in-app purchases.

### Is TechStack by JSP free?

TechStack by JSP is free to download, with in-app purchases available.

### Do Delphi Pro or TechStack by JSP have ads?

TechStack by JSP shows ads; Delphi Pro does not.

### Which is updated more often, Delphi Pro or TechStack by JSP?

Delphi Pro ships an update every 2 weeks, and TechStack by JSP daily. Most recently, Delphi Pro was updated on October 8, 2026 and TechStack by JSP on October 9, 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.*