# Deer vs S.P.A.R.K.

The clearest difference is in-app purchases: S.P.A.R.K. at none against Deer's 3. Deer's advantage is device support (4 vs 2). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Deer sells 3 in-app purchases, starting at $0.99 per month. S.P.A.R.K. asks for nothing beyond the download.

Deer ships an update every 9 days, S.P.A.R.K. fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Deer | S.P.A.R.K. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/deer-note-outline-mindmap/id1509262785/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 266 MB |
| Requires iOS | **15** | 16.4 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [佳文 潘](https://appshunter.io/developer/1312631799) | [YOOBIC](https://appshunter.io/developer/881892441) |

## What reviewers say

### Deer

[App page](https://appshunter.io/ios/app/deer-note-outline-mindmap/id1509262785)

This app offers structured note-taking with features to reorder lines, convert notes to outlines, and generate mind maps. It helps organize complex information and newly learned knowledge points for clearer understanding.

**Highlights:** Freely reorder notes by line, One-click outline conversion, One-click mind map generation, Drag and drop paragraph reordering, Clearer structure visualization

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription Monthly | $0.99 | per month |
| Subscription Yearly | $5.99 | per year |
| Lifetime VIP | $9.99 | one-time |


### S.P.A.R.K.

[App page](https://appshunter.io/ios/app/spark/id6746840882)

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

**In-app purchases:** none


## Frequently asked questions

### Is Deer free?

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

### Is S.P.A.R.K. free?

S.P.A.R.K. is free to download, with no in-app purchases.

### Do Deer or S.P.A.R.K. have ads?

Neither Deer nor S.P.A.R.K. shows ads.

### Which is updated more often, Deer or S.P.A.R.K.?

Deer ships an update every 9 days, and S.P.A.R.K. fortnightly. Most recently, Deer was updated on October 24, 2026 and S.P.A.R.K. on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*