Curated apps similar to Retro 15C, ranked by relevance and user ratings.
Mohamad Bachir Sidani
Utilities
Counter Pro is the best tally counter app to keep track of pretty much everything! Counter Pro is the easy and quick way to keep count on your iPhone.
Scan cards, get real-time data and prices
Almaz Bektemirov
Utilities
Scan trading cards to identify details like name, set, rarity, and estimated market . Use AI-powered image recognition for instant results. View historical data and compare values over time. Export information as PDF or share via email.
Dimitrios Kechagias
Utilities
Apart from the most reliable app for polar alignment (with or without a polar scope), PS Align pro has become the astronomer's swiss-army knife with all the tools added over the years.
Calculate, convert, solve, and graph
KRASHSOFT LLC
UtilitiesCalculate with four modes: basic for arithmetic and percentages, scientific for algebra and trigonometry, programming for command line expressions in multiple numerical systems, and minimalist for simplicity.
Play games and manage ROMs
建菊 林
UtilitiesRun games using . ROM files. Load and play classic titles with accurate emulation. Navigate a simple, clean interface to access game settings and controls. Save game progress and adjust audio settings for optimal performance.
Calculate, switch, and share results
良峰 侯
UtilitiesPerform calculations with basic and scientific modes. Switch between portrait and landscape views. Display calculation steps and use a voice-activated . Customize keyboard layout and choose from two skins.
Willy Kunz
UtilitiesA dream calculator of the mid-70's, priced at $2,500 in today's dollars (2025), right on your iPhone! RPN-67 SD is the iPhone version of RPN-67 Pro, the first complete simulation of Hewlett-Packard's legendary HP-67 programmable calculator for the iPad.
Ramkumar Vellaisamy
UtilitiesCount anything, build habits and keep scores with Tally Counter – your all‑in‑one clicker and score counter.
Calculate, edit, and track numbers
HINOCON VALLEY INC.
UtilitiesPerform calculations a large, easy-to-press button layout. Display results in clear, readable text. Includes a cat animation for visual appeal. Share results via social media or email. View calculation history.
Calculate roof pitch and rafter length
Anna Filobok
UtilitiesConvert between imperial and metric units in real time. Calculate roof pitch, rafter length, and roof area using rise, run, or house area. Input measurements in meters, centimeters, or inches.
Calculate age and differences quickly
Mohamed Ezzat
UtilitiesCalculate age and differences in years, months, and days. Determine total months, weeks, days, hours, and minutes between two dates. Share calculation results directly.
Create countdowns and track time to events
ramazan celikkaya
UtilitiesTrack time until upcoming events with customizable countdowns and timers. Set reminders to receive notifications. View elapsed time since past dates. Edit and manage multiple countdowns without limits.
Scan receipts, calculate tips, split bills
Planet B, Inc.
UtilitiesCalculate tips and split bills by scanning receipts with the camera. Automatically fill in the total bill amount. Manually adjust totals if needed. Share the split results via email or messaging apps.
Track counts, set reminders, log habits
Kok Keong
UtilitiesTrack counts for people, animals, games, habits, pills, or symptoms. Set multiple reminders for each tracker. Enter custom values for precise logging. Reset counts by day, week, year, or keep a continuous . Customize counters with personal settings.
Convert across 43 categories
Homegrown Software Ltd
UtilitiesConvert across 43 categories including speed, time, length, volume, and temperature. Switch between hundreds of . Convert currency and fuel consumption. View conversion results directly. Sync with device for universal access.
Calculate cutting speeds and feeds for HSM
M.A. Ford Europe Ltd
UtilitiesCalculate cutting speeds and feeds for High Speed with support for ISO materials and adaptive data based on workpiece properties. Adjust parameters via touchscreen for real-time updates. Choose metric or US units. Set maximum RPM limits.
Penchenat Romain
UtilitiesThe Prime Numbers App offers 4 main features: 1. Quickly check if a number is prime or not 2. Find the prime number that follows the number of your choice 3. Get a list of all the prime numbers between 2 numbers of your choice 4.
Record notes and logs with a tap
masato nakamura
UtilitiesRecord and organize notes in categories like jogging logs, study logs, and meal logs. Create timestamps for quick entries and fill in details later. Export data to CSV format for backup or analysis.
Get step-by-step solutions and explanations
SBK Bilisim Teknoloji ve Danismanlik Sanayi ve Ticaret Limited Sirketi
UtilitiesSolve math problems, explain scientific concepts, and clarify historical events. Provide step-by-step solutions and detailed explanations. Answer questions in real-time across multiple subjects.
Udio signals with custom parameters
Ibrahim Al-Sammarraie
UtilitiesUdio signals with adjustable parameters and frequency up to 20 kHz. Create single signals, sweeps, or merged signals. Control duty cycle, frequency, and waveform type. Export generated audio files.
App information from Apple App Store. Retro 15C and related trademarks belong to Greg Hewgill.