Comparison

DELTA Camera vs Add Astra

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

Head to head
About

DELTA Camera

This app offers professional photography controls with a unique one-gesture interface. Easily adjust ISO, shutter speed, and white balance with simple touch, drag, and release actions. Capture detailed RAW images and monitor settings in real-time.

Highlights
  • One-gesture manual controls
  • Adjust ISO, shutter speed, white balance
  • RAW photo support
  • Real-time HUD for settings
  • Intuitive interface
Features
Read full description

Delta Camera – One Touch. Pro Photography. Delta Camera lets you control ISO, shutter speed, white balance, and all manual camera settings with just one gesture: touch, drag, and release. Say goodbye to complicated menus and enjoy professional photography with intuitive, effortless controls. - Full Manual Control in a Single Gesture – Adjust ISO, shutter speed, exposure, focus, and more with just one swipe of your finger. - Pro RAW Support – Capture every detail in RAW format for ultimate flexibility in post-processing. - Innovative On-Screen HUD – Monitor and adjust all settings in real-time without interrupting your shot. Transform your iPhone into a professional manual camera and take full control of every shot with just one gesture.

About

Add Astra

Overlay accurate star positions onto your photos using image metadata and machine learning. The app intelligently identifies the sky to ensure stars are placed realistically, avoiding unwanted artifacts.

Highlights
  • Accurate star positioning
  • Uses Yale Bright Star Catalog
  • Extracts image metadata
  • Machine learning sky detection
  • Realistic star overlays
Features
Read full description

Add Astra was our first app. It uses the Yale Bright Star Catalog with extracted image metadata (date, time, location, orientation, and direction) to find star positions accurate to your uploaded image. Add Astra also uses the DETRResnet50SemanticSegmentationF16 Machine Learning Model to find the sky in your image, and only overlay the stars there, so you don’t have weird white dots all over your picture!

Screenshots

DELTA Camera3 screens
Add Astra2 screens

Verdict

The call

The clearest difference is price: Add Astra at Free against DELTA Camera's $4.99. Add Astra also leads on rating (5.0 vs 4.4) and review sentiment (100% vs 67%). DELTA Camera's advantage is in-app purchases (none vs 5) and ratings volume (11 vs 3). On update cadence, 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

Add Astra is free to download; DELTA Camera costs $4.99 up front. Add Astra sells 5 in-app purchases, starting at $10.99 per month. DELTA Camera asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Add Astra holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 11 and 3 respectively. Written reviews point the same way: 67% of DELTA Camera's written reviews are positive against 100% of Add Astra's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard7 real differences · 3 level
DELTA Camera versus Add Astra: the parameters behind the verdict, then further details
ParameterDELTA CameraAdd Astra
Price$4.99Free — better
Rating4.4 (11 ratings)5.0 (3 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings11 — better3
Update frequencyEvery 2 daysEvery 2 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS14.5 — better17.0
Further details — not scored
Size1 MB120 MB
Age rating4+4+
DeveloperTae ho LeeAPParent LLC

Customer experience

DELTA Camera

All ratings11 ratings
Positive81.8%
Neutral9.1%
Negative9.1%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Add Astra

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

DELTA Camera

No in-app purchases

5 purchases

Add Astra

Subscriptions1
  • 100 Credits a Month + No Ads$10.991 Month
One-time4
  • One Credit$0.29
  • Five Credits$0.99
  • Ten Credits$1.99
Show 1 more
  • 50 Credits$7.49

Questions

Is DELTA Camera free?
DELTA Camera costs $4.99, with no in-app purchases.
Is Add Astra free?
Add Astra is free to download, with in-app purchases available.
Which has better reviews, DELTA Camera or Add Astra?
Add Astra is rated higher. DELTA Camera averages 4.4 out of 5 from 11 ratings, while Add Astra averages 5.0 from 3 ratings.
Do DELTA Camera or Add Astra have ads?
Neither DELTA Camera nor Add Astra shows ads.
Which is updated more often, DELTA Camera or Add Astra?
DELTA Camera ships an update every 2 days, and Add Astra every 2 days. Most recently, DELTA Camera was updated on November 6, 2026 and Add Astra on November 5, 2026.

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