Complement app vs WhenWorks
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Complement app
Enhance your WhatsApp experience with tools to manage contacts and messages. Quickly start chats, save contacts without storing them, and schedule messages for future delivery. Enjoy a user-friendly interface designed for efficiency.
- Open chat without saving number
- Save contacts without phone storage
- Share, edit, and export contacts
- Schedule messages for specific dates
- Edit created reminders
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Complement add new functionalities to WhatsApp in a fast and intuitive way. Making the most of this fantastic tool depends only on you. With this app you can: * Quickly open a new conversation without having to register the number previously. * Register new contacts without having to store them on the iPhone. * Share, edit and export contacts to the iPhone whenever you want. * Easily schedule a message for a specific date so you can send it just in time. * Edit reminders after they have been created. * A good user experience with a successful design and with the quality it deserves. Complement is constantly growing, download now and enjoy it to the fullest.
WhenWorks
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Trying to find a date everyone can make via text is painful. Everyone has busy lives. A simple app, designed to allow you to more easily vote on dates you can make. Once everyone votes, the creator can pick a final date and everyone can easily integrate it into their calendar. Easy peasy. When was the last time you saw your mates? Why not ask them, WhenWorks? Terms of Use: This app uses Apple's Standard End User License Agreement (EULA). View at: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://vidbeamish.co.uk/Privacy_WhenWorks.html
Screenshots
Verdict
The clearest difference is update cadence: WhenWorks at every 8 days against Complement app's every 5 weeks. On price, ads, in-app purchases and device support 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. Complement app sells 1 one-off in-app purchase and WhenWorks sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Complement app ships an update every 5 weeks, WhenWorks every 8 days. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.
| Parameter | Complement app | WhenWorks |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1K ratings) — better | — |
| Positive reviews | 60.9% of reviews | — |
| Number of ratings | 1K — better | — |
| Update frequency | Every 5 weeks | Every 8 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 14 MB | 88 MB |
| Age rating | 4+ | 17+ |
| Developer | Alan Roldan | David Beamish |
Bugs and requests
Complement app
Reported bugs
4 issues- Scheduled messages not sending
- Overwrites existing scheduled messages
- Doesn't work in latest update
- Doesn't recognize valid phone numbers
Requested features
7 requests- Send messages to multiple recipients
- Option to choose SMS over WhatsApp
- Automatic message sending without confirmation
- Recurring/repeating message scheduling
- Ability to edit scheduled date and time
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- Direct WhatsApp Business integration
- Ability to send images
WhenWorks
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Complement app
- Remove Ads$9.99
WhenWorks
- WhenWorks Premium Subscription$4.991 Month
- WhenWorks Token Bundle$6.99
