Comparison

OSpectrometer vs Office Hours Reminder

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

Head to head
About

OSpectrometer

This app uses your device's camera and screen to perform basic optical spectroscopy. Analyze the visible light spectrum of objects, map light wavelengths to RGB values, and save or share your findings. It functions offline without external hardware.

Highlights
  • Visible light spectrum analysis
  • RGB color value mapping
  • Wavelength selection and scanning
  • Front camera reflection sensing
  • Save and share results
  • Offline functionality
Features
Read full description

Optical spectroscopy in the visible light spectrum is a commonly used tool in different fields such as health, manufacturing, art, and forensic research. OSpectrometer implements basic spectrometer functions using the built-in camera and screen without requiring external devices or programs. - Visible light spectrum is transformed and mapped to a function that generates RGB (Red Green Blue) color values - A specific light wavelength can be selected and used to illuminate a desired target (i.e., close to the screen) - The whole spectrum or a specific part of the spectrum can be selected and scanned - Front camera is used to sense the reflection from the target object - Consistent and repeatable reflection/absorption amplitude with respect to the color spectrum - The result can be saved and shared - Works offline, no need to connect to any network or internet Privacy-policy: https://software.nanorescenter.com/osprectrometer-privacy-policy Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Office Hours Reminder

Features
Read full description

Office Hours is the cleanest, most focused work timer for professionals who care about their time. Set your start time, let the app handle the math, and know the exact moment your workday is done. TRACK YOUR WORKDAY Tap "Set to Now" to start your timer instantly, or enter a custom start time Real-time countdown shows exactly how many hours and minutes remain Circular progress ring and progress bar update every second Configure a different hour target for each day of the week BREAKS & LEAVES, CALCULATED AUTOMATICALLY Log breaks with a single tap — every minute outside is accurately deducted Record early leave time to reduce your required hours for the day The end time adjusts automatically so the math is always correct ALWAYS ON YOUR WRIST & SCREEN Full Apple Watch companion app — start, stop, and monitor your timer without touching your phone Live Activity keeps the countdown visible on your Lock Screen and in the Dynamic Island Home screen widgets in small and medium sizes show your progress at a glance NEVER MISS YOUR OFFICE ARRIVAL Optional geofencing automatically detects when you arrive at work A prompt appears the moment you walk in to start your timer hands-free SMART REMINDERS Hourly notifications update you on remaining time throughout the day A work-complete alarm sounds the moment your target is reached Notifications are fully configurable — turn them on or off at any time CUSTOM COUNTDOWN Count down to any upcoming event: vacation, deadline, bonus day, or a personal goal Set a label and a date; your countdown appears in the app header every day Built-in daily to-do list keeps your tasks alongside your timer A fresh developer-themed motivational quote rotates every day Week calendar view gives you a clear picture of your working week THOUGHTFULLY DESIGNED Dark and light mode No account required — all data stays on your device No ads, no subscriptions, no tracking

Screenshots

OSpectrometer4 screens
Office Hours Reminder3 screens

Verdict

The call

The clearest difference is in-app purchases: Office Hours Reminder at none against OSpectrometer's 2. Office Hours Reminder also leads on update cadence (weekly vs every 2 weeks). OSpectrometer's advantage is iOS requirement (15.1 vs 17.0). On price, ads 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. OSpectrometer sells 2 in-app purchases, starting at $2.99 per month. Office Hours Reminder asks for nothing beyond the download.

UpkeepUpdate frequency

OSpectrometer ships an update every 2 weeks, Office Hours Reminder weekly. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 7 level
OSpectrometer versus Office Hours Reminder: the parameters behind the verdict, then further details
ParameterOSpectrometerOffice Hours Reminder
PriceFreeFree
Rating2.0 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.1 — better17.0
Further details — not scored
Size71 MB2 MB
Age rating4+4+
DeveloperNANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETIEnes Uysal

In-app purchases

2 purchases

OSpectrometer

Subscriptions2
  • month3 Days trial$2.991 Month
  • year3 Days trial$9.991 Year
None

Office Hours Reminder

No in-app purchases

Questions

Is OSpectrometer free?
OSpectrometer is free to download, with in-app purchases available.
Is Office Hours Reminder free?
Office Hours Reminder is free to download, with no in-app purchases.
Do OSpectrometer or Office Hours Reminder have ads?
Neither OSpectrometer nor Office Hours Reminder shows ads.
Which is updated more often, OSpectrometer or Office Hours Reminder?
OSpectrometer ships an update every 2 weeks, and Office Hours Reminder weekly. Most recently, OSpectrometer was updated on October 15, 2026 and Office Hours Reminder on October 17, 2026.

Other comparisons