Comparison

FIFISH vs Kor Mobile

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

Head to head
About

FIFISH

Explore the underwater world with an OMNI-directional drone. Its advanced thrusters allow for 3D movement and 360° rotation, capturing stunning 4K footage with cinematic clarity. Enhance your underwater videos with intelligent color correction and low-light capabilities.

Highlights
  • OMNI-directional movement
  • 360° rotation (roll, pan, tilt)
  • 4K UHD / 30 FPS video recording
  • 1080P / 120 FPS option
  • 166° FOV adaptable lens
  • Auto color-enhancing algorithms
  • Low-light performance (f/2.5 aperture, ISO 100-6400)
Read full description

Meet FIFISH V6, the world's 1st OMNI-directional underwater drone that gives you the full freedom to drive in any direction. Powered with 6 patented thrusters, the V6 empowers you to explore the vast underwater world without limits. FIFISH V6’s smart vector thrusters deliver astonishing 3-dimensional freedom. It can rotate 360° degrees in rolling, panning and tilting. Equipped with Ambarella chipset, FIIFISH V6 shots at 30 frames-per-second, delivering the greatest cinematic clarity for underwater drones. The H.265 codec offers advanced compression in your 4K footage, resulting in higher storage efficiency with greater detail. Available for 4K UHD / 30 FPS or 1080P /120 FPS. The stunning 166° FOV adaptable lens display lets you fully experience a human’s natural vision undersea and connects seamlessly with the ocean life and ecosystems. The camera system’s auto color-enhancing algorithms and manual settings bring out the vibrant colors of ocean landscapes. The f/2.5 aperture and wide ISO range 100-6400 deliver remarkable images in low light conditions below the surface. Exciting and once-in-a-lifetime moments can pass by in an instant. FIFISH V6 will avoid blurry shots and ghosting footage even in the strongest currents, capture your most important underwater stories. Make your underwater moments epic by enhancing the feeling and mood of your footage. Whether highlighting the ocean depths or capturing the vibrancy of tropical coral reefs, it makes your videos truly memorable. -1080P real time images -Real time transmission of depth & direction data -Real time transmission of camera parameters -One button control for shooting, recording & saving photos or videos -Adjustable focus and macro mode -Replay recording photos or videos at any time -Download original 4K video with high resolution

About

Kor Mobile

Read full description

Kor offers a mobile interface for YSI’s industry-leading EXO Multiparameter Water Quality Sondes, providing powerful, real-time water quality monitoring capabilities in the palm of your hand. Connect to Kor Mobile on your iOS device using a KorLink Bluetooth adapter connected to an EXO sonde via a field cable to establish a Bluetooth connection to view and manage water quality data directly in the field. No internet connection required. Key Features: • Data Management – View recorded data and transfer or share data files in the field  • Site Management – Organize and access data by location • Deployment Tools – Streamline setup and configuration in the field • Sensor Calibration – Perform calibrations directly from your phone • Instrument Settings – Adjust parameters and settings with ease • App Settings – Customize your experience

Screenshots

FIFISH4 screens
Kor Mobile4 screens

Verdict

The call

The clearest difference is update cadence: FIFISH at monthly against Kor Mobile's every 4 months. 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

FIFISH ships an update monthly, Kor Mobile every 4 months. The most recent releases landed on July 4, 2026 and September 18, 2026 respectively.

Scorecard1 real difference · 9 level
FIFISH versus Kor Mobile: the parameters behind the verdict, then further details
ParameterFIFISHKor Mobile
PriceFreeFree
Rating2.2 (14 ratings) — better—
Positive reviews6.7% of reviews—
Number of ratings14 — better—
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better14.5
Further details — not scored
Size140 MB41 MB
Age rating4+4+
DeveloperShenzhen QiYuan Technology Co. Ltd.Xylem Inc.

In-app purchases

None

FIFISH

No in-app purchases

None

Kor Mobile

No in-app purchases

Questions

Is FIFISH free?
FIFISH is free to download, with no in-app purchases.
Is Kor Mobile free?
Kor Mobile is free to download, with no in-app purchases.
Do FIFISH or Kor Mobile have ads?
Neither FIFISH nor Kor Mobile shows ads.
Which is updated more often, FIFISH or Kor Mobile?
FIFISH ships an update monthly, and Kor Mobile every 4 months. Most recently, FIFISH was updated on July 4, 2026 and Kor Mobile on September 18, 2026.

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