Comparison

Simple Fasting App vs Primary+

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Simple Fasting App

This app simplifies intermittent fasting with a focus on privacy and ease of use. It offers popular fasting schedules, progress tracking, and smart notifications without ads, subscriptions, or data collection.

Highlights
  • Free and private
  • Popular fasting schedules
  • Progress tracking
  • Smart notifications
  • Intuitive design
  • Customizable themes
  • Quick start
Features
Read full description

Track intermittent fasting with a clear timer, flexible plans and a history you can return to. Simple Fasting App is free to use, with every feature included and no ads or subscriptions. Start without creating an account. A PLAN THAT FITS YOUR DAY Choose 12:12, 16:8, 18:6, 20:4 or a 24-hour fast, or set your own duration. Adjust the start time if you forgot to start the timer. Finish whenever you need to; reaching your target does not automatically end your fast. YOUR PROGRESS AT A GLANCE See elapsed time, time remaining and your planned finish time. Set an optional completion reminder. Follow your fast with Home Screen widgets, Live Activities and Dynamic Island on supported iPhones. APPLE WATCH AND SIRI Start and finish a fast from your Apple Watch. Your session syncs with your paired iPhone when connectivity is available. Tap the watch dial to open its controls. Use Siri and Shortcuts to manage your fast, ask about time and history, or change the timer display. You can also choose your next plan through a shortcut while your current fast continues. Siri availability depends on language, device and system settings. A HISTORY THAT MAKES SENSE Review completed fasts, average duration, your longest fast and weekly or monthly patterns. Open a day to see its sessions and timeline. Use the roomier iPad layout in portrait or landscape. LEARN AS YOU GO Explore illustrated fasting-stage guides with source links. The stages are general estimates based on elapsed time, not measurements of your metabolism or guarantees of a health result. PRIVATE AND PERSONAL Your fasting records are stored locally on your devices. The app does not collect or sell your fasting data. Paired iPhone–Watch syncing and optional Siri features use Apple system services; details are in the privacy policy. Choose light or dark appearance and your preferred accent color. Available in English, Turkish, German and Spanish. Simple Fasting App is a personal tracking tool and does not provide medical advice. Choose your plan and start when you are ready.

About

Primary+

Features
Read full description

Patient Mobile App (Primary Focus): • User Access: Both retail patients and employer patients will have access to the mobile application. It is preferred to have the app available from day one to ease the transition for users accustomed to existing apps like Spruce. • Onboarding & Profile: ◦ Includes email verification and password creation, with clear password requirements. ◦ Users can reset their password. ◦ The profile section will allow users to view their profile details, membership information, documents, medications, and educational materials. • Membership & Billing: ◦ Patients can pay via the mobile application and update/change their credit card information. ◦ Supports designating specific cards for specific charges (e.g., membership, labs). ◦ Users can view invoices, payment history, and statements. Payment history will show invoice numbers, amounts, and methods, and statements can be filtered by date range and downloaded as PDFs for tax purposes. ◦ Legally, patients must be able to cancel their membership online directly through the app without extra steps. • Communication: ◦ Features sections for unread messages, upcoming appointments, and tasks. ◦ Patients can create new messages, select a subject, and attach files (e.g., lab reports, images, PDFs). ◦ Messages can be marked as urgent or non-urgent. After-hours urgent messages will trigger auto-responses and notify alternative providers. Non-urgent messages will be processed as tasks for providers. ◦ A unified messaging feature will combine functionalities from Spruce and Elation Passport [Previous turn, 251]. It will include audio calls, urgent message markers, and message scheduling (from the provider side). Message threads can be closed and new ones opened. ◦ A badge system will notify users of unread messages. ◦ Multi-language support will be available for patient-facing features like chat and legal forms. • Appointments: ◦ Users can view, request, and manage appointments, including virtual and in-person options. ◦ Appointment reminders will be sent via email and SMS, with a link to confirm. ◦ Patients can fill out demographic information and upload insurance photos ahead of time to save front desk time. ◦ Self-scheduling capabilities are desired, though their functionality will be carefully designed. • Health Records & Documents: ◦ Patients will have access to their health records, upcoming appointments, current medications, and latest reports [Previous turn, 490]. ◦ They can view and manage medications, request refills, and see details from past visits and lab reports. ◦ An option to print vaccination and immunization records for school or work purposes will be included. ◦ Consent for video chats is required only upon the first use.

Screenshots

Simple Fasting App4 screens
Primary+4 screens

Verdict

The call

The clearest difference is update cadence: Primary+ at daily against Simple Fasting App's every 6 weeks. Primary+ also leads on iOS requirement (15.1 vs 17.6). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Simple Fasting App ships an update every 6 weeks, Primary+ daily. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Simple Fasting App versus Primary+: the parameters behind the verdict, then further details
ParameterSimple Fasting AppPrimary+
PriceFreeFree
Rating4.5 (44 ratings) — better—
Positive reviews76.9% of reviews—
Number of ratings44 — better—
Update frequencyEvery 6 weeksDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.615.1 — better
Further details — not scored
Size6 MB42 MB
Age rating4+17+
DeveloperMehmet Emrah KonyaPHPMG, Inc.

In-app purchases

None

Simple Fasting App

No in-app purchases

None

Primary+

No in-app purchases

Questions

Is Simple Fasting App free?
Simple Fasting App is free to download, with no in-app purchases.
Is Primary+ free?
Primary+ is free to download, with no in-app purchases.
Do Simple Fasting App or Primary+ have ads?
Neither Simple Fasting App nor Primary+ shows ads.
Which is updated more often, Simple Fasting App or Primary+?
Simple Fasting App ships an update every 6 weeks, and Primary+ daily. Most recently, Simple Fasting App was updated on October 23, 2026 and Primary+ on October 7, 2026.

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