# Kilonotes vs EcoGPT

The clearest difference is rating: EcoGPT at 4.8 against Kilonotes's 4.6. EcoGPT also leads on chart position (#28 vs unranked). Kilonotes's advantage is iOS requirement (15.6 vs 18.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Kilonotes sells 20 in-app purchases, starting at $0.99 per month and EcoGPT sells 18 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

EcoGPT holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 5K and 8.7K respectively. Written reviews point the same way: 71% of Kilonotes's written reviews are positive against 77% of EcoGPT's.

Kilonotes ships an update weekly, EcoGPT every 5 days. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Kilonotes | EcoGPT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (5K ratings)](https://appshunter.io/ios/app/kilonotes-notes-and-mark-up-pdf/id1514322479/reviews) | **[4.8 (8.7K ratings)](https://appshunter.io/ios/app/ecogpt/id6756059656/reviews)** |
| Number of ratings | 5K | **8.7K** |
| Positive reviews | 70.9% of reviews | **77.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#28** |
| Size | 482 MB | 91 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Hefei T-Stack Information Technology Co., Ltd.](https://appshunter.io/developer/1514322478) | [EcoGPT Inc](https://appshunter.io/developer/6785926865) |

## What reviewers say

### Kilonotes

[App page](https://appshunter.io/ios/app/kilonotes-notes-and-mark-up-pdf/id1514322479)

This app offers a digital notebook experience for handwritten notes, PDF annotation, and study organization. It features freehand drawing, text extraction, AI assistance for learning, and customizable templates to enhance productivity and learning.

**Highlights:** Handwritten note-taking, PDF annotation and markup, AI assistant for learning, OCR text extraction, Customizable notebooks and templates, Recording function, Global PDF search

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

**In-app purchases (20)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cloud space monthly membership | $0.99 | per month |
| Monthly Subscription | $1.99 | per month |
| Quarterly Plan | $4.99 | per 3 months |
| AIChat | $5.99 | per month |
| Year Subscription | $8.99 | per year |
| Annual Plan | $9.99 | per year |
| Cloud space annual membership | $9.99 | per year |
| ExamPolitics_2019_2023_test | Free | one-time |
| Summer Forest 2022 Handbook | $0.99 | one-time |
| Xiaofen Diary 2022 Handbook | $0.99 | one-time |
| Fresh 2022 Handbook | $0.99 | one-time |
| 康奈尔笔记 | $0.99 | one-time |
| Cartoon mistake book | $0.99 | one-time |
| Paid Notebook | $0.99 | one-time |
| Alice | $1.99 | one-time |
| 咸鱼日常 | $1.99 | one-time |
| AI Points Products | $1.99 | one-time |
| 月亮兔 | $1.99 | one-time |
| Paid Notebook | $2.99 | one-time |
| Lifetime Access | $19.99 | one-time |

**What reviewers like**

- 🚀 Affordable
- 🚀 Lots of free features
- 👍 Easy to use and intuitive
- 👍 Customizable notebooks and pages
- 👍 Good alternative to paid apps

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🐛 Syncing and backup issues
- 🔒 Lack of password protection or privacy features
- 👎 Limited free notebooks
- 👎 Some features locked behind paywall

**Reported bugs**

- Notebooks and notes getting deleted or scrambled
- Lag and performance issues when writing or zooming
- Inconsistent behavior of the pen and eraser tools

**Requested features**

- Add more free sticker packs and templates
- Improve the lasso tool and image editing
- Implement iCloud or cloud sync
- Add a dark mode option
- Improve the audio recording and playback features


### EcoGPT

[App page](https://appshunter.io/ios/app/ecogpt/id6756059656)

**Currently charting:** #28 Top Free · Productivity, #190 Top Grossing · Productivity (US App Store)

This AI chatbot offers powerful writing, thinking, and creative assistance with a focus on reducing environmental impact. It provides efficient processing and transparent eco-tracking, allowing users to contribute to tree planting with their usage.

**Highlights:** AI chatbot for writing and ideation, Environmentally responsible AI processing, Eco-impact dashboard, Tree planting contributions, Unlimited chats (Premium), Image generation (Premium), Web search (Premium)

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EcoGPT Monthly Subscription | $5.99 | per month |
| EcoGPT Monthly Subscription. | $7.00 | per month |
| EcoGPT Monthly Subscription | $9.99 | per month |
| Monthly Subscription | $9.99 | per month |
| EcoGPT Yearly Subscription. | $9.99 | per year |
| EcoGPT Monthly Subscription. | $10.00 | per month |
| EcoGPT Monthly Subscription. | $10.00 | per month |
| EcoGPT Monthly Subscription. | $14.99 | per month |
| EcoGPT Monthly Subscription | $19.99 | per month |
| EcoGPT Monthly Subscription. | $19.99 | per month |
| EcoGPT Monthly Subscription. | $20.00 | per month |
| EcoGPT Monthly Subscription. | $24.99 | per month |
| EcoGPT Yearly Subscription. | $29.00 | per year |
| EcoGPT Yearly Subscription | $49.99 | per year |
| EcoGPT Yearly Subscription | $49.99 | per year |
| EcoGPT Yearly Subscription. | $59.99 | per year |
| EcoGPT Yearly Subscription | $69.99 | per year |
| EcoGPT Yearly Subscription | $99.99 | per year |


## Frequently asked questions

### Is Kilonotes free?

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

### Is EcoGPT free?

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

### Which has better reviews, Kilonotes or EcoGPT?

EcoGPT is rated higher. Kilonotes averages 4.6 out of 5 from 5K ratings, while EcoGPT averages 4.8 from 8.7K ratings.

### Do Kilonotes or EcoGPT have ads?

Both Kilonotes and EcoGPT show ads.

### Which is updated more often, Kilonotes or EcoGPT?

Kilonotes ships an update weekly, and EcoGPT every 5 days. Most recently, Kilonotes was updated on October 17, 2026 and EcoGPT on October 18, 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.*