nikki vs BuildTimer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
nikki
This app allows you to keep a private diary with rich media. You can add photos, take notes in a chat format, and use it as a planner. Security features include password and biometric locks, with customizable themes to personalize your journaling experience.
- Insert pictures into diary entries
- Chat-style memo function
- Use as a future date schedule book
- Password and biometric app lock
- Various fun stamps
- Customizable timeline themes (Pinboard, List, Calendar)
Read full descriptionHide full description
Wanna write your secret diary...?? Here is the perfect app for you!! ◎Functions 1. Pictures can be inserted into each article. 2. There is a memo function: You can take notes in a chat format. 3. It can be used as a schedule book by writing on a future date. 4. You can lock the app with a password. It corresponds also to Face ID, Touch ID. 5. There are various fun stamps. ◎Change the timeline theme as you like (3 types) 1. Pinboard type with an emphasis on photos 2. List type with an emphasis on articles 3. Calendar type with an emphasis on practicality
BuildTimer
Read full descriptionHide full description
BuildTimerはあなたの日々の活動を管理し、一覧形式やグラフ化で見える化を図り、計画的に目標達成を支援します。 ■積み上げる内容を目標として投稿 投稿する目標は、達成するためにどれだけの時間を積み上げるかという計画です。これにより、目標達成に向けた積み重ねを計画的に記録することが可能となります。 ■毎日の積み上げ記録 毎日の積み上げ記録として、日常の活動をタイマー形式で記録します。目標の投稿をクリックすることで、一覧形式で積み上げた記録を確認することができます。 ■時期別で記録を確認 日々積み上げた記録は日、週、月、年別で切り替えて表示することができます。どれだけ積み上げたか時間も確認可能なため、一覧形式ですぐ把握できます。 ■円グラフで記録を可視化 積み上げた時間を円グラフで可視化することができます。これにより、目標達成までの進捗や時間の配分を一目で確認できます。 ■お問い合わせ ご意見、機能追加のご要望があれば、下記までご連絡ください。 karirin419@gmail.com
Screenshots
Verdict
The clearest difference is in-app purchases: BuildTimer at none against nikki's 2. BuildTimer also leads on ads (none vs shown) and update cadence (fortnightly vs every 2 months). On price, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. nikki sells 2 one-off in-app purchases. BuildTimer asks for nothing beyond the download.
nikki ships an update every 2 months, BuildTimer fortnightly. The most recent releases landed on October 3, 2026 and October 28, 2026 respectively.
| Parameter | nikki | BuildTimer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 98.1% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.3 |
| Further details — not scored | ||
| Size | 30 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | REVOLAB Inc. | hashimoto ryouya |
In-app purchases
nikki
- 添付画像を10枚にUP$2.99
- 広告非表示（広告を外す）$7.99
BuildTimer
No in-app purchases
