# ASHRAE Psychrometric Chart vs Microsoft Planner

The clearest difference is price: Microsoft Planner at Free against ASHRAE Psychrometric Chart's $19.99. Microsoft Planner also leads on update cadence (every 6 weeks vs every 11 months). ASHRAE Psychrometric Chart's advantage is iOS requirement (13.0 vs 17.0). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Microsoft Planner is free to download; ASHRAE Psychrometric Chart costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ASHRAE Psychrometric Chart ships an update every 11 months, Microsoft Planner every 6 weeks. The most recent releases landed on October 12, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ASHRAE Psychrometric Chart | Microsoft Planner |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | — | **[4.6 (13K ratings)](https://appshunter.io/ios/app/microsoft-planner/id1219301037/reviews)** |
| Number of ratings | — | **13K** |
| Positive reviews | 27.3% of reviews | **28.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 weeks** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 158 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [ASHRAE, Inc.](https://appshunter.io/developer/375374912) | [Microsoft Corporation](https://appshunter.io/developer/298856275) |

## What reviewers say

### ASHRAE Psychrometric Chart

[App page](https://appshunter.io/ios/app/ashrae-psychrometric-chart/id584295008)

This interactive tool allows users to plot and customize psychrometric charts on their iPad. Easily create and save HVAC process graphs, update properties dynamically, and share charts and data via email. Supports both IP and SI units.

**Highlights:** Interactive psychrometric chart plotting, Customizable chart appearance, Dynamic property updates, Create and edit points and labels, Email charts and data, Unlimited projects and templates, Zoom and pinch functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### Microsoft Planner

[App page](https://appshunter.io/ios/app/microsoft-planner/id1219301037)

Organize teamwork visually with a simple, interactive board. Assign tasks, track progress, and collaborate with your team through integrated conversations and file sharing. Stay updated on all your tasks across different plans and devices.

**Highlights:** Visual task boards, Task assignment and tracking, Team collaboration and chat, File sharing, Cross-device synchronization, My Tasks view

**In-app purchases:** none

**What reviewers like**

- 🚀 Great for team collaboration
- 👍 Easy to use and intuitive
- 🚀 Helpful for personal organization
- 👍 Good integration with Microsoft 365 suite

**What reviewers complain about**

- 🐛 Buggy and unstable
- 🔒 Limited to work/school accounts only
- 🔒 Lack of customization options
- 🐛 Slow performance and sync issues
- 🔒 Missing key features like calendar view

**Reported bugs**

- Freezing on login screen
- Inability to create or edit plans
- Tasks disappearing or not syncing properly
- Compatibility issues on older devices
- Comments not saving or editable

**Requested features**

- Recurring tasks and calendar integration
- Ability to copy/move tasks between plans
- More flexible labeling and filtering options
- Offline mode and export/import functionality
- Deeper integration with Outlook and Teams


## Frequently asked questions

### Is ASHRAE Psychrometric Chart free?

ASHRAE Psychrometric Chart costs $19.99, with no in-app purchases.

### Is Microsoft Planner free?

Microsoft Planner is free to download, with no in-app purchases.

### Do ASHRAE Psychrometric Chart or Microsoft Planner have ads?

Neither ASHRAE Psychrometric Chart nor Microsoft Planner shows ads.

### Which is updated more often, ASHRAE Psychrometric Chart or Microsoft Planner?

ASHRAE Psychrometric Chart ships an update every 11 months, and Microsoft Planner every 6 weeks. Most recently, ASHRAE Psychrometric Chart was updated on October 12, 2026 and Microsoft Planner on October 31, 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.*