Comparison

VIKI KNOWS vs Diary Journal

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

Head to head
About

VIKI KNOWS

Features
Read full description

VIKI Knows allows you to control the devices in your smart house. Equipped with artificial imitative intelligence the house adapts to and continually learns the behavior of the users accessing it. The following facilities are available: > Lights Control (Switch, Dimmer, RGBW) > Multimedia Control (TV on / off switch, TV Channels switch, TV Volume control) > Climate Control (Heating, Cooling, Ventilation, Humidification, Dehumidification, Shading) > Security - Access Control (Door Lock control) Implemented using Z-Wave wireless technology, the solution can be installed in new houses, houses under construction and houses in use, just as well, without requiring substantial changes to any of them. Interested in the product? For more details on VIKI - the smart home that learns your habits, suggestions or questions, please send an email to contact@vikiknows.com. The project is being developed by QSound Soft and Napoca Software, companies based in Cluj-Napoca, Romania.

About

Diary Journal

This app provides a secure and private digital space for recording thoughts, memories, and dreams. It encourages self-reflection and personal growth through daily journaling, ensuring all entries are kept confidential.

Highlights
  • Secret diary entries
  • Log life events and progress
  • Record emotions and feelings
  • Password protection for privacy
  • Encourages self-reflection
  • Modern journal interface
Features
Read full description

Diary, a secret diary which is a new special place for your thoughts, memories, dreams! Mark down all special events, write about your moments and rest assured all your secrets are safe here in the cutest personal journal. It's a modern journal that will encourage you to open up and motivate you to become the best version of yourself. Log life events & progress with our journal diary with password app. A convenient, safe, reliable and simple to use mobile diary app to log your daily life activities, emotions and feelings. You can keep it securely from others eyes, no one will see your diary book. Privacy Policy: https://www.bytecrazy.com/common_privacy_en.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

VIKI KNOWS4 screens
Diary Journal4 screens

Verdict

The call

The clearest difference is in-app purchases: VIKI KNOWS at none against Diary Journal's 1. VIKI KNOWS also leads on iOS requirement (11.3 vs 13.0). On price, 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

Both are free to download. Diary Journal sells 1 in-app purchase, starting at $19.99 per year. VIKI KNOWS asks for nothing beyond the download.

UpkeepUpdate frequency

VIKI KNOWS ships an update every 2 months, Diary Journal every 6 weeks. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard2 real differences · 8 level
VIKI KNOWS versus Diary Journal: the parameters behind the verdict, then further details
ParameterVIKI KNOWSDiary Journal
PriceFreeFree
Rating—4.7 (369 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—369 — better
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.3 — better13.0
Further details — not scored
Size113 MB57 MB
Age rating4+4+
DeveloperVIKIKNOWSHeyou Co., Ltd.

Bugs and requests

VIKI KNOWS

Not enough reviews yet to summarise bugs or requests.

Diary Journal

Reported bugs

9 issues
  • Video uploads fail and crash repeatedly
  • Long video entries don't save properly
  • Data doesn't transfer to new phone despite cloud backup
  • Import from ZIP file causes app to close
  • App crashes when importing exported data
Show 4 more
  • Audio playback volume extremely faint
  • Audio doesn't work with headphones or speakerphone
  • Slow performance when reviewing weekly entries
  • No customer support response to data loss issues

Requested features

10 requests
  • Timestamp for each journal entry
  • Password reset or recovery option
  • Multiple entries per day in free version
  • Font customization (size, bold, italics, underline)
  • Location tagging for entries
Show 5 more
  • Longer video duration allowance
  • Better fake diary with generic text and pictures
  • Login system for cloud data sync
  • Cross-device data transfer
  • Improved audio volume and headphone support

In-app purchases

None

VIKI KNOWS

No in-app purchases

1 purchases

Diary Journal

Subscriptions1
  • Diary Pro 1 Year$19.991 Year

Questions

Is VIKI KNOWS free?
VIKI KNOWS is free to download, with no in-app purchases.
Is Diary Journal free?
Diary Journal is free to download, with in-app purchases available.
Do VIKI KNOWS or Diary Journal have ads?
Neither VIKI KNOWS nor Diary Journal shows ads.
Which is updated more often, VIKI KNOWS or Diary Journal?
VIKI KNOWS ships an update every 2 months, and Diary Journal every 6 weeks. Most recently, VIKI KNOWS was updated on November 2, 2026 and Diary Journal on November 7, 2026.

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