# Sticky Memo++ vs OTenkeyCalc

The clearest difference is in-app purchases: OTenkeyCalc at none against Sticky Memo++'s 1. OTenkeyCalc also leads on update cadence (every 2 weeks vs every 30 months). Sticky Memo++'s advantage is ads (none vs shown) and iOS requirement (11.0 vs 16.7.10). On price and device support there is nothing between them.

Both are free to download. Sticky Memo++ sells 1 one-off in-app purchase. OTenkeyCalc asks for nothing beyond the download.

Sticky Memo++ ships an update every 30 months, OTenkeyCalc every 2 weeks. The most recent releases landed on October 11, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Sticky Memo++ | OTenkeyCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (5 ratings)](https://appshunter.io/ios/app/sticky-memo-plus-plus/id832492204/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 30 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 37 MB |
| Requires iOS | **11.0** | 16.7.10 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wataru Maeda](https://appshunter.io/developer/593481380) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Sticky Memo++

[App page](https://appshunter.io/ios/app/sticky-memo-plus-plus/id832492204)

Create colorful digital sticky notes quickly and easily. Organize tasks, shopping lists, or diary entries, and enhance them with photos and videos. Customize boards and sort notes by various criteria for efficient management.

**Highlights:** 5 colorful sticky notes, Attach photos and videos, 10 different boards, Rearrange memos by date, color, media, Delete memos individually or all, Restore version 1 memos

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad free | $1.99 | one-time |


### OTenkeyCalc

[App page](https://appshunter.io/ios/app/otenkeycalc/id6502439720)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sticky Memo++ free?

Sticky Memo++ is free to download, with in-app purchases available.

### Is OTenkeyCalc free?

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

### Do Sticky Memo++ or OTenkeyCalc have ads?

OTenkeyCalc shows ads; Sticky Memo++ does not.

### Which is updated more often, Sticky Memo++ or OTenkeyCalc?

Sticky Memo++ ships an update every 30 months, and OTenkeyCalc every 2 weeks. Most recently, Sticky Memo++ was updated on October 11, 2026 and OTenkeyCalc on October 27, 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.*