Comparison

Zeus Focus Stacking vs Bloom

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

Head to head
About

Zeus Focus Stacking

This app transforms your iPhone into a macro photography studio. It captures multiple images at varying focus points and intelligently blends them into a single, razor-sharp photo from front to back. Advanced features allow for precise control over capture and editing, with an optional Pro upgrade for enhanced capabilities.

Highlights
  • Precision focus bracketing
  • Automatic focus sweep
  • Intelligent alignment engine
  • Built-in adjustable editor
  • AI object removal (Pro)
  • 2x Super Resolution (Pro)
  • Full-resolution export (Pro)
Features
Read full description

Every Pixel. Razor Sharp. Zeus Focus Stacking turns your iPhone into a professional macro lab. Capture multiple frames at different focus distances, blend them into one perfectly sharp image — front to back. PRECISION CAPTURE • Focus Range — set Near and Far brackets on the live preview, so each stack sweeps only the depth you want • Tap to rack focus straight to any subject plane • Subject Focus — tap your subject and the series is captured around it, from the center outward, so what matters is sharp first • Automatic focus bracketing — sweep from near to far in seconds • 10 or 20 frames per stack (20 with Pro) • Linear or macro-biased focus distribution for optimal coverage (macro with Pro) • Capture Speed — Max Speed, Balanced, or Max Quality for the focus bracket (Pro) • Ultra 48 MP — capture the whole bracket at the sensor's full resolution, on iPhones with a 48 MP-class sensor (Pro) • Lossless 12 MP zoom via the wide camera • Shoot in portrait or landscape — your photo always comes out the right way up • Single Shot — one photo at the current focus, edited like any result REMOTE CONTROL • Shoot from another phone or a computer's browser: scan a QR code or share a link, on the same Wi-Fi or Personal Hotspot — nothing to install, no internet needed • Live view, Focus Range, capture options and shutter, all from a distance • Save the result on your iPhone or download the picture from the browser INTELLIGENT ENGINE Advanced focus-stacking built for iPhone. Smart alignment holds your frames in register through hand-held movement, lens breathing and focus shifts, and the engine renders them into a single image with finer detail and cleaner edges than any Zeus release before it — clean outlines where your subject meets the background, no glow around bright points, and no doubling when something shifts between shots. Core stacking runs on-device; optional iCloud sync and showcase uploads stay under your control. BUILT-IN EDITOR • Exposure, contrast, highlights, shadows, color and vignette — every change stays adjustable, and your original stays safe • Crop and straighten • AI object removal — paint over a distraction and it disappears (Pro) • 2× Super Resolution — double the resolution for galleries and large prints (Pro) PRO • Capture Speed — pick Max Speed for near-instant brackets (lighter per-frame processing) or Max Quality for the most per-frame detail; every stack exports at full resolution • iCloud Sync — projects and original frames across all your devices GALLERY THAT KEEPS UP • Original frames preserved for every project — re-stack with newer engines anytime • Engine History — regenerate with a newer engine and keep the earlier result; compare the versions in the viewer and delete what you don't need • HEIC and JPEG export, native Photos sharing • Picture of the Week — submit your best focus stacks to the gallery TUNED TO EACH iPHONE Each iPhone model gets its own calibration profile, so the stacking engine knows exactly how your lens behaves. Sharper alignment, no manual tweaks. Macro photography. Product shots. Jewelry. Watches. Coins. Insects. Botanical specimens. Forensic detail. Whatever the subject — Zeus Focus Stacking handles depth so you don't have to. Free to download. Pro upgrade unlocks full-resolution export, Ultra 48 MP capture, AI object removal, 2× Super Resolution, iCloud sync, Capture Speed control, and 20-frame brackets. Privacy Policy: https://zeusfocusstacking.com/privacy Terms of Use (EULA): https://zeusfocusstacking.com/terms

About

Bloom

Features
Read full description

Bloom brings focus stacking to your iPhone. Shoot close-ups of flowers, insects, jewelry or small products, and get one photo where the whole subject is sharp. WHY STACKING? At macro distance, only a thin slice of your subject is in focus. Bloom solves that the way scientific and fine-art macro photographers do: it captures several frames at different focus distances and merges the sharp parts of each into a single image. HOW IT WORKS 1. Point your iPhone at a subject at macro distance. 2. Check the focus with Focus Peaking. 3. Choose how many frames to stack. 4. Press the shutter. Bloom sweeps the focus from near to far and captures every frame, with a live CAPTURE counter. 5. Bloom merges them. BLOOMING… turns into BLOOMED: your finished photo, with the depth and number of frames used shown next to it. CHOOSE YOUR STACK: 3, 5, 7, 9 OR 11 FRAMES More frames means more depth of field. Each option comes with a short explanation, and 5 frames is marked as Recommended: a good balance of speed and depth for most subjects. Use 3 frames when you need to be quick, and 7, 9 or 11 for taller subjects or when the subject holds completely still. FOCUS PEAKING A live edge overlay shows exactly which parts of your subject are sharp before you shoot. Switch it on or off with one tap on the Focus Peaking button, and choose red, green or white highlights to suit your subject. An intensity slider lets you tune how strong the overlay appears. NEW IN THIS VERSION Compare a single frame with your stacked result using the SINGLE | STACKED slider. Choose JPEG or HEIC for the finished photo and optionally save the individual frames to a “Bloom frames” album. Macro assist on the camera screen tells you to hold steady, that the subject is moving, or that you are ready to stack; switch it on or off in Settings. BLOOM PRO 3 and 5 frames are free. 7, 9 and 11 frames unlock with Bloom Pro: a single, one-time purchase of €2.99. No subscription, yours to keep. PRIVATE BY DESIGN No account. No cloud. Everything is processed on your iPhone, offline. Your photos are saved to your photo library and to a dedicated Bloom album. Bloom works best with a steady hand or a tripod, and with subjects that stay still while the frames are captured.

Screenshots

Zeus Focus Stacking4 screens
Bloom4 screens

Verdict

The call

Zeus Focus Stacking and Bloom are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Zeus Focus Stacking sells 2 in-app purchases, starting at $3.99 per month and Bloom sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Zeus Focus Stacking ships an update weekly, Bloom every 5 days. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

ScorecardNo meaningful differences
Zeus Focus Stacking versus Bloom: the parameters behind the verdict, then further details
ParameterZeus Focus StackingBloom
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS18.517.0 — better
Further details — not scored
Size86 MB15 MB
Age rating4+4+
DeveloperRoberto SartoriMario Steenbergen

In-app purchases

2 purchases

Zeus Focus Stacking

Subscriptions2
  • Zeus Pro · Monthly$3.991 Month
  • Zeus Pro · Yearly$24.991 Year
1 purchases

Bloom

One-time1
  • Bloom Pro$2.99

Questions

Is Zeus Focus Stacking free?
Zeus Focus Stacking is free to download, with in-app purchases available.
Is Bloom free?
Bloom is free to download, with in-app purchases available.
Do Zeus Focus Stacking or Bloom have ads?
Neither Zeus Focus Stacking nor Bloom shows ads.
Which is updated more often, Zeus Focus Stacking or Bloom?
Zeus Focus Stacking ships an update weekly, and Bloom every 5 days. Most recently, Zeus Focus Stacking was updated on October 24, 2026 and Bloom on October 19, 2026.

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