Comparison

Periodic Timer vs Qentix Code

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

Head to head
About

Periodic Timer

This app provides a simple, repeating interval timer that can run in the background without distracting you. It offers customizable alerts, quick start options, and prevents your screen from locking while active. Ideal for various activities like fitness, cooking, and learning.

Highlights
  • Repeating interval timer
  • Background operation
  • Customizable alerts (vibration/sound)
  • Prevent lockscreen
  • Shake to start
  • Multiple timer output modes
Features
Read full description

Keep track of time without being distracted by the device! Simple and easy timer that repeats at your chosen interval. FEATURES - Vibration, if sound is off. - Works in the background. - 3 timer output modes: intervals, total time, countdown. - You can cancel or pause the timer with help of a notification. - Quick Start from icon. - Shake To Start - can be enabled in settings. - Prevent Lockscreen - another useful setting, the screen will not lock, while the timer is running. USE CASES Here is a list of known use cases based on the real feedback: Fitness and health: - Stretching - Stationary bicycle (interval training) - On a treadmill - For HIIT - Jogging - Timed medication - Boxing Cooking - While frying potatoes - Roasting steaks - Checking an over or a grill to prevent burning Learning & science - Foreign language learning - As a lab timer - Periodic data collection - Speech training - Presentation timing Other - Mindfulness - Communication - To have a sense of time flying away :) HELP Q: Why the timer doesn't work in the background? A: You should allow notifications. Q: How to turn off the sound and turn on the vibration? A: On the device, turn the Silent Mode on. (Side Switch) Q: Alert is limited for 5 seconds! A: Go to Settings app, then Periodic Timer > Notifications > Banner Style > Persistent. Q: How to switch the Timer Output Mode? A: To switch the Output Mode touch the timer display at the top of the screen. Q: What is Shake To Start for? A: Shake To Start setting allows to start/cancel the timer by shaking the device. Thus, you don't touch the screen, what can be useful while cooking, for example. In order for this mode to work, the app should be open. If you still have questions or suggestions, you can visit the support page (https://goo.gl/forms/pggVBcaBxdW85EGE3), the Facebook group (http://www.facebook.com/groups/PeriodicTimer/) or you can email me (periodictimer.sup@gmail.com). If you like the app - please, rate it!

About

Qentix Code

Features
Read full description

제품에 부착된 QENTIX가 발행한 QR 코드를 스캔하는 순간, 정품 여부와 큐싱 보안 안전 여부를 실시간으로 검증하는 차세대 정품 인증 스캐너입니다. 블록체인·비가시 워터마크·AI 세 가지 기술이 동시에 작동하는 3계층 보안으로, 정교하게 만들어진 가품과 복제된 QR까지 가려냅니다. 가품 구매에 대한 불안, 위변조된 QR로 인한 피싱 피해 — QENTIX 하나로 끝냅니다. ■ 이런 점이 다릅니다 1. 블록체인 발급 이력 검증 QENTIX가 발행한 모든 QR은 블록체인에 발급 이력이 기록됩니다. QENTIX는 스캔 즉시 이 이력을 대조해, 정상 발급된 정품 및 보안 QR만 통과시킵니다. 위조·복제된 코드는 발급 이력이 없어 즉시 차단됩니다. 2. 비가시 워터마크 (Invisible Watermark) 육안으로는 보이지 않는 워터마크를 QR코드에 삽입합니다. 일반적인 캡처·복사로는 재현할 수 없어, QR 이미지를 그대로 베껴도 가품을 걸러냅니다. 3. AI 판별 AI가 코드의 미세한 패턴과 특징을 분석해 진위를 한 번 더 확인합니다. 클라우드 전송 없이 빠르고 안전하게 판별합니다. ■ 주요 기능 실시간 QR 진위성 검증 — 스캔 즉시 정품/가품 판별 큐싱(Qshing, QR 피싱) 방어 — 악성 링크로 위장한 QR 차단 제품 정보 및 인증 이력 조회 검증 결과 즉시 표시 — 통과 시 제품 정보, 실패 시 경고 페이지 직관적인 스캔 화면과 빠른 응답 속도 ■ 이런 분께 추천합니다 정품 여부를 직접 확인하고 싶은 소비자 제품 진위 관리가 필요한 브랜드·제조사 현장에서 빠른 검증이 필요한 유통·물류 담당자 ■ 신뢰할 수 있는 인증 QENTIX는 단순한 QR 리더가 아닙니다. 3계층 보안 아키텍처로 설계된 플랫폼으로, 브랜드와 소비자 모두를 가품과 악성 QR로부터 보호합니다.

Screenshots

Periodic Timer4 screens
Qentix Code4 screens

Verdict

The call

The clearest difference is update cadence: Qentix Code at every 6 days against Periodic Timer's every 2 months. Periodic Timer's advantage is device support (3 vs 1). On price, ads, in-app purchases 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

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

Periodic Timer ships an update every 2 months, Qentix Code every 6 days. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
Periodic Timer versus Qentix Code: the parameters behind the verdict, then further details
ParameterPeriodic TimerQentix Code
PriceFreeFree
Rating4.1 (167 ratings) — better—
Positive reviews52.1% of reviews—
Number of ratings167 — better—
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.016.0 — better
Further details — not scored
Size23 MB4 MB
Age rating4+17+
DeveloperVladimir KelinWego company Inc.

Bugs and requests

Periodic Timer

Reported bugs

12 issues
  • Sound/notifications fail to trigger despite settings enabled
  • Timer cancels when phone is shaken or moved
  • Vibration doesn't work when screen is locked or off
  • App crashes on launch (especially after updates)
  • Watch app crashes or doesn't function
Show 7 more
  • Notifications inconsistent on Apple Watch
  • Timer speed inaccurate (runs too fast)
  • App won't open after deletion and reinstall
  • Upgrade popup spams every second, making app unusable
  • Heart rate monitor stays active, draining battery
  • Vibration doesn't work on silent mode
  • Watch green light stays on continuously

Requested features

15 requests
  • Adjustable sound volume and custom alert sounds
  • Customizable vibration patterns
  • Settings menu for user preferences
  • Ability to add notes/labels to timers
  • Seconds-only timer option
Show 10 more
  • Simple countdown timer (non-repeating)
  • Separate exercise and rest period intervals
  • Start timer at specific time of day
  • Disable sound option for silent vibration-only mode
  • Prevent screen lock while timer is running
  • Apple Watch vibration support
  • Seconds increment option (not just minutes)
  • Better Apple Watch complications and integration
  • Free trial period before purchase requirement
  • Disable shake-to-cancel functionality

Qentix Code

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Periodic Timer

No in-app purchases

None

Qentix Code

No in-app purchases

Questions

Is Periodic Timer free?
Periodic Timer is free to download, with no in-app purchases.
Is Qentix Code free?
Qentix Code is free to download, with no in-app purchases.
Do Periodic Timer or Qentix Code have ads?
Neither Periodic Timer nor Qentix Code shows ads.
Which is updated more often, Periodic Timer or Qentix Code?
Periodic Timer ships an update every 2 months, and Qentix Code every 6 days. Most recently, Periodic Timer was updated on October 11, 2026 and Qentix Code on October 10, 2026.

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