Comparison

Aiera vs Per Diem

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

Head to head
About

Aiera

Access and stream critical investor events like earnings calls and conference presentations with live audio and speech-to-text transcription. Manage your investment workflow on the go with features like DVR-like playback, search, document viewing, and offline downloads.

Highlights
  • Live audio streaming
  • Live speech-to-text transcription
  • DVR-like playback controls
  • Search across events and companies
  • View supporting event documents
  • Offline event downloads
  • Automated event summaries
Features
Read full description

This app is only accessible by Aiera customers. Aiera offers the best mobile experience for critical investor events such as earnings calls, conference presentations, regulatory/macro events, and so much more. Gain access to 60,000+ events per year across 13,000+ global equities, on the app trusted by countless top institutional investors. Take your investment workflow with you, wherever you are: - Access and stream the events you care about with one click - Listen to live audio and follow along with truly live speech-to-text transcription - Pause, rewind, and change playback speed during live events (like DVR) - Search across companies and events for key terms you care about - View supporting event documents such as presentation slides and press releases - Download events for offline access, with audio and transcription - View automated summaries of all events in the Aiera app - Scope your calendar and event lists across your custom company watchlists Manage the firehose of earnings season, conference season, and every event in between, in the palm of your hand. AIERA regards information that it provides as data that readers may or may not use in evaluating securities transactions that they may be contemplating. Readers should not construe the information provided as investment advice or as recommendations to buy, sell, or hold any securities. AIERA specifically disclaims having the information that it would need to tailor the information that it provides to any particular person's investment needs. AIERA advises readers to consider the information carefully, and to consult with their advisors, as appropriate, prior to making any investment decisions. AIERA is not registered as a securities broker-dealer or an investment adviser with the U.S. Securities and Exchange Commission, the Financial Industry Regulatory Authority or any state securities regulatory authority.

About

Per Diem

This app helps households understand their spending, savings, and long-term retirement plans in one place. It offers live account syncing, budgeting tools, and financial projections to model future scenarios and major life decisions.

Highlights
  • Live account sync
  • Budgeting tools
  • FIRE planning
  • Financial projections
  • Goal modeling
  • AI-powered financial insights
Read full description

Per Diem is a personal finance and FIRE planning app for households that want one place to understand spending, savings, and long-term retirement tradeoffs. A paid subscription is required to use Per Diem. Subscription access includes live account sync, budgeting tools, FIRE planning, and Ask AI. With a subscription, you can: - Connect bank and brokerage accounts - Track transactions, budgets, income, assets, and net worth in one place - Run FIRE projections that update as your finances change - Model goals and major life tradeoffs - Use Ask AI to explore your finances with your permission Ask AI is optional. If you choose to use it, Per Diem will ask for permission before sending your messages and relevant financial context to the selected third-party AI provider. Per Diem is built for people who want clarity without stitching together a budgeting app, an investment tracker, and a spreadsheet. Use Per Diem to: - See how spending decisions affect your financial independence timeline - Review account balances, transactions, budgets, and income together - Compare future scenarios like career changes, savings shifts, and major goals - Understand the tradeoffs behind the next financial decision Terms of use: https://perdiem.app/terms-of-service

Screenshots

Aiera4 screens
Per Diem4 screens

Verdict

The call

The clearest difference is rating: Aiera at 4.8 against Per Diem's 4.0. Aiera also leads on in-app purchases (none vs 2) and ratings volume (18 vs 2). On price, update cadence, ads and iOS requirement 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. Per Diem sells 2 in-app purchases, starting at $8.99 per month. Aiera asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Aiera holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Aiera has 18 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Aiera ships an update fortnightly, Per Diem every 10 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Aiera versus Per Diem: the parameters behind the verdict, then further details
ParameterAieraPer Diem
PriceFreeFree
Rating4.8 (18 ratings) — better4.0 (2 ratings)
Positive reviews75.0% of reviews—
Number of ratings18 — better2
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better16.4
Further details — not scored
Size22 MB65 MB
Age rating4+4+
DeveloperAIERA, Inc.Per Diem, LLC

Customer experience

Aiera

All ratings18 ratings
Positive94.4%
Neutral0.0%
Negative5.6%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Per Diem

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

Aiera

No in-app purchases

2 purchases

Per Diem

Subscriptions2
  • Pro Subscription (monthly)14 Days trial$8.991 Month
  • Pro Subscription (annual)14 Days trial$89.991 Year

Questions

Is Aiera free?
Aiera is free to download, with no in-app purchases.
Is Per Diem free?
Per Diem is free to download, with in-app purchases available.
Which has better reviews, Aiera or Per Diem?
Aiera is rated higher. Aiera averages 4.8 out of 5 from 18 ratings, while Per Diem averages 4.0 from 2 ratings.
Do Aiera or Per Diem have ads?
Neither Aiera nor Per Diem shows ads.
Which is updated more often, Aiera or Per Diem?
Aiera ships an update fortnightly, and Per Diem every 10 days. Most recently, Aiera was updated on November 2, 2026 and Per Diem on October 30, 2026.

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