Night Calendar vs AchieveIt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Night Calendar
This app allows you to customize your daily schedule by changing the start time of your day. Events occurring before your set start time will be displayed as part of the previous day's schedule, offering a flexible way to view your commitments.
- Adjustable daily start time
- Events displayed for previous/next day
- Flexible schedule viewing
- Customizable time zones
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A major feature of this app is the ability to change the start time of each day. If you set the start time of each day to 8 AM, events that start between midnight and 7:59 AM will be displayed as your schedule for the previous day. Also, if you set the start time of each day to 10 PM, events that start between 10 PM and 11:59 PM will be displayed as your schedule for the next day.
AchieveIt
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AchieveIt: Efficient Task Management, Achieve Extraordinary Self AchieveIt is a powerful task management app designed specifically for iOS users. It aims to help you efficiently plan, execute, and track tasks, enhancing personal productivity. I. Core Functions 1. Task management: Easily create, edit, and delete tasks, making your to-do list clear at a glance. You can add detailed descriptions to each task to ensure accurate understanding of task requirements. 2. Set parent tasks: Build task hierarchies and clarify the relationships between tasks, making your task management clearer and more orderly. For each task, it's clear why it's done. 3. Set planned execution dates: Set specific start dates for tasks, arrange time reasonably, and ensure that you are not confused every day and know what to do now. 4. Set task colors: Distinguish the priority or type of tasks through different colors, allowing you to quickly find the key points among numerous tasks. 5. Custom tags: Add personalized tags to tasks for easy classification and retrieval, improving task search efficiency. 6. Record the time period for completing tasks: Accurately record the completion time of tasks, allowing you to clearly understand your work rhythm. At the same time, you can also view the time period for executing tasks on any date for easy review and summary. 7. Calculate the recent work status: Analyze your work status based on your task completion and working hours, providing you with targeted suggestions and improvement directions. 8. Statistics on the number of daily task completions and working hours: Let you intuitively understand your work efficiency and inspire you to keep making progress. II. Medal System AchieveIt's unique medal system adds fun and motivation to your task management. By completing tasks, you can obtain various exquisite medals. These medals are not only recognition of your efforts but can also be shared with friends to show your achievements. III. User Experience AchieveIt has a simple and intuitive user interface, and the operation is convenient and fast. Whether you are a novice or an experienced user, you can easily get started. At the same time, the app continuously optimizes performance to ensure a smooth and stable use experience. Whether you are a student, an office worker, or a freelancer, AchieveIt can become your powerful assistant in improving efficiency and achieving goals. Come and download AchieveIt and start your efficient task management journey! By downloading this app, you agree to Apple’s standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Night Calendar at none against AchieveIt's 1. AchieveIt's advantage is ads (none vs shown) and update cadence (every 4 months vs every 8 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. AchieveIt sells 1 in-app purchase, starting at $1.99 per month. Night Calendar asks for nothing beyond the download.
Night Calendar ships an update every 8 months, AchieveIt every 4 months. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.
| Parameter | Night Calendar | AchieveIt |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 8 months | Every 4 months — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 19 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | Motoki Takahashi | 笛 吴 |
In-app purchases
Night Calendar
No in-app purchases
AchieveIt
- Monthly subscription service1 Month trial$1.991 Month









