# PlanTodo vs Archius

The clearest difference is device support: PlanTodo at 4 against Archius's 2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. PlanTodo sells 2 in-app purchases, starting at $0.99 per month and Archius sells 1 in-app purchase, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

PlanTodo ships an update every 9 days, Archius every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | PlanTodo | Archius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/archius/id6774877186/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 31 MB | 75 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [嘉林 陈](https://appshunter.io/developer/1886152970) | [DAVID BOGDANOV](https://appshunter.io/developer/6774877188) |

## What reviewers say

### PlanTodo

[App page](https://appshunter.io/ios/app/plantodo-schedule-planner/id6760841812)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Yearly | $9.99 | per year |


### Archius

[App page](https://appshunter.io/ios/app/archius/id6774877186)

This AI assistant provides direct, honest, and actionable answers without filler. It can draft emails and schedule meetings, with advanced features like web search and image understanding available through a subscription.

**Highlights:** Direct answers without preamble, Honest AI that admits when it doesn't know, Actionable outputs for emails and calendar events, Web search with cited sources (Pro), Image understanding (Pro), Deep thinking for complex problems (Pro)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Archius Pro | $12.99 | per month |


## Frequently asked questions

### Is PlanTodo free?

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

### Is Archius free?

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

### Do PlanTodo or Archius have ads?

Neither PlanTodo nor Archius shows ads.

### Which is updated more often, PlanTodo or Archius?

PlanTodo ships an update every 9 days, and Archius every 2 weeks. Most recently, PlanTodo was updated on October 24, 2026 and Archius on October 24, 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.*