Chord Training Assistant vs 打卡唯爱生理期
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chord Training Assistant
This app helps musicians learn and practice chords with a vast library of over 800 options. It includes a metronome, practice history tracking, and a chord library, with a VIP plan offering unlimited practice and an ad-free experience.
- Supports 800+ chords
- Built-in metronome
- Practice history and statistics
- Comprehensive chord library
- Dark mode support
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- Function Description 1. Support 800+ chords 2. Powerful metronome 3. Practice history / statistic 4. Chord library 5. Support dark mode - VIP Plan Monthly plan: $1.99 Yearly plan: $12.99 Permanent Plan: $19.99 VIP functions: Unlimited practice chord number, no ads., unblock future new VIP functions. - Links Terms of Use： https://blog.osfpu.com/random-chord-terms-of-use/ Privacy Policy：https://blog.osfpu.com/random-chord-privacy-policy/ User Support： https://blog.osfpu.com/random-chord-support/
打卡唯爱生理期
This utility app provides menstrual cycle prediction, and tools for pregnancy planning, tracking, and parenting. It aims to help users manage their reproductive health and family journey.
- Menstrual cycle prediction
- Pregnancy planning tools
- Pregnancy tracking
- Parenting resources
- Health management
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唯爱生理期 - 经期预测，备孕、怀孕、育儿必备工具； 经期预测备孕怀孕育儿必备， 爱她，从关注生理期开始！
Screenshots
Verdict
The clearest difference is in-app purchases: 打卡唯爱生理期 at none against Chord Training Assistant's 3. Chord Training Assistant's advantage is ads (none vs shown) and iOS requirement (9.0 vs 13.0). On price, rating, ratings volume and update cadence 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. Chord Training Assistant sells 3 in-app purchases, starting at $1.99 per month. 打卡唯爱生理期 asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Chord Training Assistant against 5.0 for 打卡唯爱生理期. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Chord Training Assistant ships an update every 2 weeks, 打卡唯爱生理期 every 11 days. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.
| Parameter | Chord Training Assistant | 打卡唯爱生理期 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 weeks | Every 11 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Ad-supported — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 40 MB | 12 MB |
| Age rating | 4+ | 9+ |
| Developer | 世杰 宋 | 浩杰 姬 |
Customer experience
Chord Training Assistant
打卡唯爱生理期
In-app purchases
Chord Training Assistant
- Monthly Plan$1.991 Month
- Yearly Plan$13.491 Year
- Permanent VIP$19.99
打卡唯爱生理期
No in-app purchases
