Comparison

f/oss vs Sunset Map

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

Head to head
About

f/oss

Features
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f/oss is a free light meter for film photography, rebuilt from the ground up as a fully native app. Point the spot-metering circle at your subject and read the exposure instantly. f/oss measures true photometric luminance through your iPhone's camera and is calibrated against professional reference meters. FIVE METERING MODES • Aperture Priority: set f-stop and ISO, get your shutter speed • Shutter Priority: set shutter and ISO, get your f-stop • Exposure Value: read the scene's EV directly • Cine: shutter angle and frame rate for filmmakers • Manual: check your chosen settings against the metered scene BUILT FOR REAL CAMERAS • Camera profiles: save your bodies with their actual shutter and bias limits • Full, half or third stop increments • Configurable shutter, aperture, ISO and exposure bias ranges • Reference lock: freeze a reading and measure scene contrast in stops • Exposure lock for recompose workflows ACCURATE • True spot metering of exactly the circle you see • Full-color light analysis: reads saturated LED and neon light correctly • Verified against professional meters from daylight to low light FREE, NO SUBSCRIPTION Every feature is free, forever. If f/oss saves your shots, there is an optional tip jar.

About

Sunset Map

Features
Read full description

Find the best sunset spot, anywhere. The map shows where the evening light will be, and real photos show what you'll shoot before you go. THE LIGHT MAP The map glows gold where the sun shines until it truly sets, and fades to purple where hills or buildings cut the evening short. Computed from real terrain, real buildings and real sun positions. On your phone, no account. TAP ANYWHERE Tap any point and know its evening: when the golden light starts, when it ends, and how many golden minutes the landscape leaves you. Every time is the spot's own clock, with one line converting it to yours. REAL PHOTO SPOTS, REAL PHOTOS Camera pins mark places people actually go for the picture: viewpoints, castles, lighthouses, and the places photographers demonstrably shoot. Open a famous spot and see real photos of it, full screen, before you go. GOLD AND GEMS Gold pins are the famous spots with superb light for your chosen day. Zoom way out and they stay visible across a whole region. Where nothing reaches gold, lavender gems mark the best spots around here. And "Best spots near you" ranks them all by golden minutes. PLAN ANY DAY The calendar works worldwide. Jump to next Saturday, or to October: the map, the pins and the gold all follow the date. Sunset or sunrise. CITIES INCLUDED At street scale the map counts buildings, street by street: quays, squares and rooftop-lined avenues each get their true evening light. YOUR SPOTS Save a place with one tap: it names itself, and the list shows each spot's own sunset time and minutes of real light. Search any street or city and land right on it. One tap hands a spot to Apple or Google Maps to get you there. ALSO Tilt to 3D: the light math stays exact. A cloud badge shows the forecast for the golden window (Apple Weather). FREE AND MEMBERSHIP The free plan covers tonight, near you: the full map, one search a day, and spot checks nearby. Membership unlocks any day and any place on Earth, plus unlimited searches and saved spots: monthly 2.90, yearly 24.90 with a 7-day free trial, or lifetime 69. MADE BY ONE PERSON I create content, and I kept wishing I knew where the golden light would land, for sunsets and for sunrises, and what a spot really looks like before going. So I built Sunset Map for myself first. I'm happy it can help you too. PRIVACY No account. Nothing tracked that identifies you. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

f/oss3 screens
Sunset Map4 screens

Verdict

The call

The clearest difference is update cadence: f/oss at every 6 days against Sunset Map's every 2 weeks. Sunset Map's advantage is iOS requirement (17.0 vs 26.0). 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. f/oss sells 3 one-off in-app purchases and Sunset Map sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

f/oss ships an update every 6 days, Sunset Map every 2 weeks. The most recent releases landed on August 28, 2026 and September 17, 2026 respectively.

Scorecard2 real differences · 4 level
f/oss versus Sunset Map: the parameters behind the verdict, then further details
Parameterf/ossSunset Map
PriceFreeFree
Update frequencyEvery 6 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS26.017.0 — better
Further details — not scored
Size1 MB5 MB
Age rating4+4+
DeveloperLuca TescariSULLIVAN Thimotee

In-app purchases

3 purchases

f/oss

One-time3
  • Nice Tip$1.99
  • Generous Tip$5.99
  • Amazing Tip$9.99
3 purchases

Sunset Map

Subscriptions2
  • Membership · Monthly$2.991 Month
  • Membership · Yearly7 Days trial$26.991 Year
One-time1
  • Membership · Lifetime$79.99

Questions

Is f/oss free?
f/oss is free to download, with in-app purchases available.
Is Sunset Map free?
Sunset Map is free to download, with in-app purchases available.
Do f/oss or Sunset Map have ads?
Neither f/oss nor Sunset Map shows ads.
Which is updated more often, f/oss or Sunset Map?
f/oss ships an update every 6 days, and Sunset Map every 2 weeks. Most recently, f/oss was updated on August 28, 2026 and Sunset Map on September 17, 2026.

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