Yellow Schedule vs TODO! Simple List
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Yellow Schedule
This powerful system streamlines appointment booking and client management with advanced SMS reminders, secure notes, and integrated payments. It offers 24/7 online booking and synchronizes with existing calendars, ensuring professional and efficient client interactions.
- Advanced SMS reminders with client replies
- Secure client notes (CRM)
- Integrated payment processing
- 24/7 online booking from website
- Calendar synchronization (Outlook/Google)
- Group scheduling functionality
- HIPAA compliance
Read full descriptionHide full description
YellowSchedule. Easiest and most powerful scheduling system in the world. Fast and Secure Scheduling (HIPAA Compliance). We streamline your entire appointments process, giving you more time to do what you do best. Features: - Advanced SMS text reminders (Now with client replies) - Greed Dot/Red Dot system. Easily see when clients confirm their attendance with an text message. - Securely keep client notes (CRM). - Advanced payments system allows you to easily gather payments from clients. - Take client bookings directly from your website! - Be available 24x7. - Get push notifications whenever you receive new appointments, client payments or messages from clients. - Track clients bookings, attendance history, payments, notes, communications. - Optional pincode security feature to prevent critical data getting into the wrong hands in the event of lost or stolen mobile device. - Ability to Synchronize with all other calendar systems Outlook/Google etc.. - Group Scheduling functionality. Security Features: - HIPAA compliance. - SSL encryption on all data transfer. - Client data encrypted on our dedicated database server. - Load balanced high availability application servers for reliability and speed. - High powered dedicated hardware protected by dedicated firewall. - Advanced RAID storage devices. - Database replication system (combined with regular scheduled backups!) to protect against data loss. Customer Testimonials: "Clients love it. I continue to see an excellent show rate; over 90% now. No-shows are rare any more" -Catherine Rosick, Counselor. Scotsdale, AZ "I'm really impressed with this scheduling tool. I saw patients confirm within seconds of being scheduled in for their appointment." "I can really relax now knowing YellowSchedule, my 'online secretary', is on the job!" -Summer Allan Wilson, Clinical Social Worker. Dallas, TX. "I'm loving YellowSchedule. I started after a mix up with appointment times which meant I lost business and haven't looked back!" -Leah Bevan, Hypnotherapist. Plymouth, UK "Yellowschedule streamlined my appointments in a professional manner. Patients appreciate the convenience and flexibility of the system. The burdens of phone tag and missed appointments are a thing of the past. I only wish I had used this service sooner." Osiris Wade, Psychotherapist. Dallas, Tx
TODO! Simple List
Read full descriptionHide full description
Fast TODO list. A fast and convenient program for managing lists of items or tasks. More details: • Create lists with items to take / tasks. • Ability to mark and unmark taken items / tasks. • Progress bar - shows the current status of the list.
Screenshots
Verdict
The clearest difference is ads: Yellow Schedule at none against TODO! Simple List's shown. Yellow Schedule also leads on update cadence (monthly vs every 5 months) and iOS requirement (9.0 vs 16.4). On price, 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. Neither carries in-app purchases, so what you see is what you pay.
Yellow Schedule ships an update monthly, TODO! Simple List every 5 months. Both last shipped on October 3, 2026.
| Parameter | Yellow Schedule | TODO! Simple List |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (8 ratings) — better | — |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Monthly — better | Every 5 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 10 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Yellow Schedule Ltd | Arkadiusz Ilkow |
In-app purchases
Yellow Schedule
No in-app purchases
TODO! Simple List
No in-app purchases
Questions
Is Yellow Schedule free?
Is TODO! Simple List free?
Do Yellow Schedule or TODO! Simple List have ads?
Which is updated more often, Yellow Schedule or TODO! Simple List?
Other comparisons















