Comparison

Simple Invoice Studio Pro vs LogNest

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

Head to head
About

Simple Invoice Studio Pro

Features
Read full description

Get paid faster with InvoiceMaker โ€” the beautifully simple billing app for solo freelancers and small teams. Create a professional invoice or estimate in under a minute, send it as a PDF from your iPhone or iPad, and see exactly who owes you what. No accounting degree required. KEY FEATURES - 40+ beautifully designed PDF invoice templates - Recurring / auto-billing for retainers and subscriptions - Turn a quote or estimate into a paid invoice with one tap - Capture digital signatures on the spot - Receivables dashboard: MRR, overdue balances, monthly cash flow - Multi-currency support with live symbols - Payment reminders and configurable late fees - Client and company profiles with logo, address, and tax details - 12 languages, with per-invoice PDF language - iCloud backup so your data follows every device - Offline-first: work anywhere, sync when you're back online - Clean, native iOS design that stays out of your way INVOICEMAKER PRO Unlock everything with a single subscription: - Ad-free experience - Unlimited access to all 40+ PDF templates - Custom branding (logo, colors, footer) - Recurring invoices and advanced automation - Priority support BUILT FOR THE WAY YOU WORK Whether you're a designer chasing a late payment, a consultant sending monthly retainers, or a crew invoicing 30 clients a week, InvoiceMaker gives you the speed of a receipt app with the polish of a full billing suite. Every screen is built for the reality of small business: quick entry, clear totals, and PDFs that actually look like your brand. Download InvoiceMaker and turn every job into a polished, paid invoice. โ€” Privacy Policy: https://taerstudio.github.io/invoicemaker/privacy-policy.html

About

LogNest

Features
Read full description

LogNest is a professional flight logbook built for commercial pilots โ€” designed to handle regulatory compliance across multiple aviation authorities, with native PDF exports formatted to match each one. IMPORT YOUR FLYING HISTORY IN MINUTES - Import your Flight Time Report directly from your airline's crew portal โ€” every flight logged automatically, no manual entry - Sync your roster from Google Calendar or straight from your iPhone/iPad's built-in Calendar โ€” or import a CSV export from another logbook app - Only the data that matches a real Volara Log field gets imported โ€” nothing forced into the wrong place BUILT FOR REAL AIRLINE OPERATIONS - Full OOOI time tracking (Out/Off/On/In) with automatic block, flight, and night time calculations - Simulator sessions, duty periods, and flight duty period (FDP) tracking โ€” all in one place - Multi-crew logging: PIC, SIC, instructor, and augmenting crew - Custom aircraft and crew registries, searchable and sortable REGULATORY LIMITS, TRACKED AUTOMATICALLY - Real-time currency and limit tracking (landings, block hours, duty periods) with expiry alerts - Generate compliant PDF logbook exports formatted for your regulatory authority (EASA/UK CAA, FAA, GCAA, Aerocivil Colombia) YOUR DATA, YOUR CONTROL - Sign in with Apple or Google โ€” used only to identify your account, never a Volara Lab login - Automatic backup and sync to your own Google Drive โ€” access your logbook from any device - Nothing shared with third parties beyond what's needed to run the app - Works fully offline; sync happens whenever you're connected Whether you're flying for a major international carrier or building hours toward your ratings, Volara Log keeps your logbook accurate, compliant, and always backed up. Professional pilot logbook: multi-authority compliance & airline import Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Simple Invoice Studio Pro4 screens
LogNest4 screens

Verdict

The call

The clearest difference is ads: LogNest at none against Simple Invoice Studio Pro's shown. LogNest also leads on update cadence (every 3 days vs every 9 days) and iOS requirement (15.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Simple Invoice Studio Pro sells 2 in-app purchases, starting at $4.99 per month and LogNest sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Simple Invoice Studio Pro ships an update every 9 days, LogNest every 3 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard3 real differences ยท 3 level
Simple Invoice Studio Pro versus LogNest: the parameters behind the verdict, then further details
ParameterSimple Invoice Studio ProLogNest
PriceFreeFree
Update frequencyEvery 9 daysEvery 3 days โ€” better
AdsYesNo โ€” better
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.615.0 โ€” better
Further details โ€” not scored
Size23 MB66 MB
Age rating12+4+
DeveloperTaha TosunDaniel Noguera

In-app purchases

2 purchases

Simple Invoice Studio Pro

Subscriptions2
  • Pro Monthly$4.991 Month
  • Pro Yearly New$34.991 Year
2 purchases

LogNest

Subscriptions2
  • Volara Log Pro Monthly$4.991 Month
  • Volara Log Pro Yearly$49.991 Year

Questions

Is Simple Invoice Studio Pro free?
Simple Invoice Studio Pro is free to download, with in-app purchases available.
Is LogNest free?
LogNest is free to download, with in-app purchases available.
Do Simple Invoice Studio Pro or LogNest have ads?
Simple Invoice Studio Pro shows ads; LogNest does not.
Which is updated more often, Simple Invoice Studio Pro or LogNest?
Simple Invoice Studio Pro ships an update every 9 days, and LogNest every 3 days. Most recently, Simple Invoice Studio Pro was updated on October 25, 2026 and LogNest on October 31, 2026.

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