TrainGo vs NudgeDuck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TrainGo
This app helps children develop good habits and focus on learning and work. It offers goal setting, a reward system, a focus timer, and daily habit tracking to encourage positive growth.
- Goal and Task Setting
- Reward System
- Focus Timer
- Habit Tracking
- Reminders
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TrainGo ——— An app that can help your child overcome various difficulties, develop good habits, focus on learning, work, and grow! With these features, your child can stay motivated, develop positive habits, and achieve their goals step by step. Features: Goal and Task Setting: Set specific goals and tasks for your child to achieve. Reward System: Define rewards that your child can earn upon completing their goals. Focus Timer: A built-in timer to help your child maintain concentration during study or work sessions. Habit Tracking: Encourage daily habit tracking through check-ins and reminders.
NudgeDuck
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Is there something you've been meaning to do — but haven't started? NudgeDuck won't help you manage a to-do list or organize a project. It does one thing: take whatever you've been putting off, use AI to break it into one concrete step you can start in 2 minutes, and walk you through a 2-minute countdown.
Screenshots
Verdict
The clearest difference is price: NudgeDuck at Free against TrainGo's $2.99. TrainGo's advantage is update cadence (every 2 days vs every 6 days) and device support (3 vs 1). On ads and in-app purchases 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
NudgeDuck is free to download; TrainGo costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
TrainGo ships an update every 2 days, NudgeDuck every 6 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.
| Parameter | TrainGo | NudgeDuck |
|---|---|---|
| Price | $2.99 | Free — better |
| Positive reviews | 75.0% of reviews | — |
| Update frequency | Every 2 days — better | Every 6 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 18 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | 摇摇 章 | 鼎 陈 |
In-app purchases
TrainGo
No in-app purchases
NudgeDuck
No in-app purchases
