Comparison

Calvin Christian School vs Study Buddy Timer

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

Head to head
About

Calvin Christian School

This app connects Christian families with their school for educational updates. Access calendars, latest messages, newsletters, and the grading portal. It aims to educate the whole child from a biblical worldview for Christ-centered service.

Highlights
  • School Calendars
  • Latest Messages
  • Newsletters
  • Grading Portal Access
  • Biblical Worldview Education
Features
Read full description

For over 50 years Calvin Christian School has partnered with Christian families, and their churches, to educate students from Escondido, Valley Center, San Marcos, Vista and communities across north San Diego County and southern Riverside County. Calvin Christian School serves Christian families with students in preschool and kindergarten through 12th grade. The mission of Calvin Christian School, in cooperation with the home and church, is to teach the whole child from a biblical worldview, founded in the Reformation, providing children from Christian families with an excellent education for a life of Christ-centered service. Download our app for access to: -Calendars -Latest Messages -Newsletters -Grading Portal Log-in -And, so much more

About

Study Buddy Timer

Features
Read full description

Study with a chill buddy that grows and talks on tap. Pair with a friend, too. No rankings. Tap "Start", then "Stop" when you finish. No setup needed. The timer keeps running even if you close the app, and you can pause anytime. Every minute you study helps your buddy grow and level up. Taking a break won't shrink your buddy. Time your study without opening the app - While the timer runs, the elapsed time and your buddy appear on the Lock Screen and in the Dynamic Island, with a ring that fills as you study - Start and stop from your Home Screen widget - Start and stop from Control Center or the Action button (iOS 18 or later) - Start timing automatically when an iPhone Focus turns on - Forgot to stop? After 3 hours you get one reminder, and you can adjust the end time later Plan what to study today - Study plans: list what to study today, then tap "Study this" to pick it and its subject before you start - Paste a study plan made with AI or anywhere else to add many plans at once - Pick events from your calendar, or connect a Reminders list - Unfinished plans carry over to the next day. After 7 days, they move to "Someday" Ambient sounds while you study - Light rain outside, forest leaves, pencil on paper, and a quiet library. Sounds unlock as your buddy levels up - They mix with music from other apps and fade out when you pause or take a break Keep going - Pomodoro: repeat 25 minutes of focus and 5 minutes of rest. Change the times anytime - Daily study time goal: set a goal in minutes and see how much is left - Current goal: write what you're working toward in one line - Exam countdown: add your exam date to see the days left on the home screen and widgets, with reminders the day before, a week before, or months before - Summary card: after you stop, see the EXP you earned, today's total, and your streak - Share today's study as a single image - Focus rating: mark each session "Not great", "OK", or "Great" (optional) - Study calendar: days you reach your goal get a leaf - Weekly review: at the end of each week, look back at your total and the subject you studied most - Study tips: 12 ideas backed by research See what you studied, and how much - Choose a subject before you start (or just start without one) - Forgot the timer? Add records up to 30 days back - Weekly and monthly charts show time and share by subject - Add textbooks and workbooks to see your time by material - Fix the time, subject, note, or focus rating of any record later - Export your records as CSV - iCloud sync and backup: switch iPhones and get your sessions and buddy back by turning on sync with the same Apple ID Study Pair (Study Buddy Pro) Connect with one partner through an invite link and see their study time today and whether they are studying right now. Grow one buddy with the time you both put in. On days when both of you do your part, it's a "pair day" and your buddy grows more. Choose a "cheer" role instead of studying. One cheer a day is enough to take part, which makes it a gentle way to support someone in your family. Your partner only sees study-time totals. They cannot see when you studied, your subjects, or your notes. Only the person who creates the pair needs Pro. Invited partners join for free. Study Buddy Pro (one-time purchase) - See past weeks, monthly charts, and study calendars for earlier months - Create a Study Pair - Ambient sounds: night rain by the window and soft noise - Add up to 5 exams No monthly fee. The timer, Pomodoro, four ambient sounds, study plans, materials, records, subjects, daily goal, one exam, this week's chart, this month's calendar, widgets, Lock Screen display, CSV export, and iCloud sync are free. No ads. Your records are yours There are no ads. Your study records are saved on this iPhone and never sent to our servers. If you turn on "Sync with iCloud", they are also saved in your own iCloud, and the developer cannot see them. Data you share in a Study Pair is stored in the pair creator's iCloud.

Screenshots

Calvin Christian School4 screens
Study Buddy Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Calvin Christian School at none against Study Buddy Timer's 1. Calvin Christian School also leads on iOS requirement (11.0 vs 17.5). Study Buddy Timer's advantage is ads (none vs shown) and update cadence (daily vs every 5 months). On price 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. Study Buddy Timer sells 1 one-off in-app purchase. Calvin Christian School asks for nothing beyond the download.

UpkeepUpdate frequency

Calvin Christian School ships an update every 5 months, Study Buddy Timer daily. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 5 level
Calvin Christian School versus Study Buddy Timer: the parameters behind the verdict, then further details
ParameterCalvin Christian SchoolStudy Buddy Timer
PriceFreeFree
Rating5.0 (5 ratings) — better—
Number of ratings5 — better—
Update frequencyEvery 5 monthsDaily — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.5
Further details — not scored
Size34 MB10 MB
Age rating4+4+
DeveloperCalvin Christian School of Escondido, IncZEC Inc.

In-app purchases

None

Calvin Christian School

No in-app purchases

1 purchases

Study Buddy Timer

One-time1
  • Study Buddy Pro$2.99

Questions

Is Calvin Christian School free?
Calvin Christian School is free to download, with no in-app purchases.
Is Study Buddy Timer free?
Study Buddy Timer is free to download, with in-app purchases available.
Do Calvin Christian School or Study Buddy Timer have ads?
Calvin Christian School shows ads; Study Buddy Timer does not.
Which is updated more often, Calvin Christian School or Study Buddy Timer?
Calvin Christian School ships an update every 5 months, and Study Buddy Timer daily. Most recently, Calvin Christian School was updated on October 15, 2026 and Study Buddy Timer on October 11, 2026.

Other comparisons